6! - 5! + 4! - 3! + 2! - 1!. [Guy]
The first person to be converted to Islam (Khadija, Prophet Muhammad's first wife) died in 619.
619 = prime(6*19). The largest zerofree prime p such that (p) is the product of the first digit of p and the rest of the number. [Firoozbakht]
According to Urantia, a religious sect headquartered in
Chicago, we live on a planet in a system that includes 619
flawed but evolving worlds.
The smallest strobogrammatic prime that is not a palindrome. [Punches]
NFL player Reggie Bush puts 619 on top of his eyeblack as a
tribute to the area code of southeast San Diego county.
Nova 619 is a webcomic.
The "619" is Rey Mysterio's signature finishing move. [Tittle]
The only strobogrammatic prime with distinct digits. [Gudipati]
TIO (Try It Online) once hosted 619 practical and recreational programming languages.
The smallest prime number that starts a series of five
consecutive primes (619, 631, 641, 643, and 647) such that
their sum (3181) is prime, the sum of their squares
(2024261) is prime, the sum of their cubes (1288478701) is
prime, and the sum of these three sums (1290506143) is
prime. The next such prime number is 4603. [Goelz]
The largest 3-digit strobogrammatic prime. [Loungrides]
The only known strobogrammatic prime that is the sum of
three consecutive triangular numbers with prime indices
(153+190+276 = 619). [Bajpai]
The only prime of form p^4-6, (case p=5). Note that for any
other prime p this form creates a composite divided by 5. [Loungrides]