# 215

This number is a composite.

Single Curio View: (Seek other curios for this number)

The smallest composite number whose the product with its
reversal plus 1, is a 2-sphenic number, i.e., 215*512+1=
110081 = 31 × 53 × 67. Note that two of the concatenations
of its prime factors are primes and another is equal to a
4-almost prime with double-digit primes, i.e., 536731 = 13
× 19 × 41 × 53. [Loungrides]
Submitted: 2020-06-27 06:18:10; Last Modified: 2020-06-27 13:08:07.

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