23156502 has 16 divisors (see below), whose sum is σ = 46872000. Its totient is φ = 7625672.

The previous prime is 23156501. The next prime is 23156503. The reversal of 23156502 is 20565132.

It is an interprime number because it is at equal distance from previous prime (23156501) and next prime (23156503).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23156501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22752 + ... + 23747.

It is an arithmetic number, because the mean of its divisors is an integer number (2929500).

Almost surely, 2^23156502 is an apocalyptic number.

23156502 is an abundant number, since it is smaller than the sum of its proper divisors (23715498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23156502 is a wasteful number, since it uses less digits than its factorization.

23156502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46587.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 23156502 is about 4812.1203226852. The cubic root of 23156502 is about 285.0302707152.

The spelling of 23156502 in words is "twenty-three million, one hundred fifty-six thousand, five hundred two".