23156512 has 24 divisors (see below), whose sum is σ = 46022256. Its totient is φ = 11468352.

The previous prime is 23156503. The next prime is 23156591. The reversal of 23156512 is 21565132.

It is a super-2 number, since 2×23156512² = 1072448096012288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43 + ... + 6805.

It is an arithmetic number, because the mean of its divisors is an integer number (1917594).

Almost surely, 2^23156512 is an apocalyptic number.

It is an amenable number.

23156512 is a deficient number, since it is larger than the sum of its proper divisors (22865744).

23156512 is a wasteful number, since it uses less digits than its factorization.

23156512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6880 (or 6872 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 23156512 is about 4812.1213617281. The cubic root of 23156512 is about 285.0303117447.

The spelling of 23156512 in words is "twenty-three million, one hundred fifty-six thousand, five hundred twelve".