137
This number is a prime.
Single Curio View: (Seek other curios for this number)
The only known primeval number whose sum of digits equals the
number of primes "contained."
Submitted: 2006-12-18 21:00:56; Last Modified: 2008-12-31 00:30:39.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell