10607
This number is a prime.
The smallest "2-eyed prime," i.e., a prime of form a0b0c where a, b, c are distinct positive digits. [Loungrides]
10607 is the smallest 5-digit prime number that is
simultaneously a safe prime and a happy prime. [Pace]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Reginald McLean