23105172 has 12 divisors (see below), whose sum is σ = 53912096. Its totient is φ = 7701720.

The previous prime is 23105161. The next prime is 23105183. The reversal of 23105172 is 27150132.

It is an interprime number because it is at equal distance from previous prime (23105161) and next prime (23105183).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 962704 + ... + 962727.

Almost surely, 2^23105172 is an apocalyptic number.

It is an amenable number.

23105172 is an abundant number, since it is smaller than the sum of its proper divisors (30806924).

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

23105172 is a wasteful number, since it uses less digits than its factorization.

23105172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925438 (or 1925436 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 23105172 is about 4806.7839560355. The cubic root of 23105172 is about 284.8195102203.

The spelling of 23105172 in words is "twenty-three million, one hundred five thousand, one hundred seventy-two".