The only known primeval number whose sum of digits equals the number of primes "contained."
137 is the largest prime factor of 123456787654321.
The reciprocal of the fine-structure constant of electromagnetism is close to 137. Throughout his life, physicist Wolfgang Pauli had been preoccupied with the question of why the fine-structure constant has this value. He died in Room 137 of the Rotkreuz hospital in Zürich, Switzerland.
The start of twelve consecutive primes with symmetrical gaps about the center.
137 divides 11111111.
The most frequent digits to occur among primes less than 1010 start out 1, 3, and 7, in that order. [McCranie]
The sum of the squares of the digits of 137 is another prime and all five odd digits are used. [Trotter]
The greatest prime factor of any 8-digit repdigit is 137. [La Haye]
The sum of the squares of the first seven digits of is the smallest such prime: 3^2 + 1^2 + 4^2 + 1^2 + 5^2 + 9^2 + 2^2 = 137. [Post]
137 * 2^523283 + 1 is prime. [McCranie]
The James A. FitzPatrick nuclear power plant on the shore of Lake Ontario has 137 control rods. [Gonyeau]
137 is the Chilean National Sea Rescue emergency number. [Vogel]
Mabkhout (1993) showed that every number x^4 + 1, for x > 3, has a prime factor greater than or equal to 137. He used a classical result of Størmer. [Post]
The numerical value of the Hebrew word Kabbalah is 137 (using the "common" Hebrew gematria method), which is equal to the combined value of the words chochmah (73), "wisdom," and nevuah (64), "prophecy." [Scholem]
Baseball player Barry Bonds batted in 137 runs in 2001, his highest yearly total to date. [McCranie]
2137 reversed is prime. [Nash]
Garry Kasparov and Anatoly Karpov played 137 draws in chess. [McCranie]
On the day before his presidential inauguration, Barack H. Obama made a 137-mile train trip from Philadelphia to Washington, DC. [McCranie]
The smallest prime with 3 distinct digits that remains prime if any one of its digits is removed. [Post]
137^(odd power) = 137 mod (17 * 23); 137^(even power) = 1 mod (17 * 23). [Sirag]
Feynmanium (symbol Fy) is informally used for a hypothetical chemical element of atomic number is 137, which has not been observed to occur naturally, nor has been synthesized, nor is it known if this element is physically possible. [Post]
(There are 13 curios for this number that have not yet been approved by an editor.)
Prime Curios! © 2000-2015 (all rights reserved)