The book is now available! 197
(another Prime Pages' Curiosity)
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The hardware and software on this system was updated September 4th.  Please let me know of any problem you encounter. <caldwell@utm.edu>

+ The only three-digit prime repfigit number. [Trotter]

+ 197 and 2197 * 197# - 1 are primes. [Boland]

+ The first three digits of the prime 197 * 197! + 1 are 197. [Luhn]

+ Surrey and England batsman Jack Hobbs scored a record 197 centuries.

+ The sum of the first dozen primes. [Brod]

+ The smallest prime number that is the sum of 7 consecutive prime numbers (17+19+23+29+31+37+41). [Schuler]

+ 197 is the sum of digits of all two-digit primes. [Gallardo]

+ The smallest multidigit prime p that makes 10^p-9 prime. Note that the next prime (199) has the same property. They are twin primes! [Gallardo]

+ This prime is the smallest number to be the sum of repdigits of its digits: 111 + 9 + 77 = 197. [Post]

+ The sum of the squares of all the four composite digits (4^2 + 6^2 + 8^2 + 9^2). [Silva]

(There is one curio for this number that has not yet been approved by an editor.)

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