138
This number is a composite.
Single Curio View: (Seek other curios for this number)
138 is the only three-digit number m such that π(m) and
prime(m) are palindromic numbers. [Firoozbakht]
Submitted: 2004-08-27 05:41:19; Last Modified: 2008-01-30 17:28:00.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell