23122172 has 24 divisors (see below), whose sum is σ = 41424432. Its totient is φ = 11289600.

The previous prime is 23122147. The next prime is 23122213. The reversal of 23122172 is 27122132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46847 + ... + 47337.

It is an arithmetic number, because the mean of its divisors is an integer number (1726018).

Almost surely, 2^23122172 is an apocalyptic number.

It is an amenable number.

23122172 is a deficient number, since it is larger than the sum of its proper divisors (18302260).

23122172 is a wasteful number, since it uses less digits than its factorization.

23122172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749 (or 747 counting only the distinct ones).

The product of its digits is 336, while the sum is 20.

The square root of 23122172 is about 4808.5519649890. The cubic root of 23122172 is about 284.8893465993.

The spelling of 23122172 in words is "twenty-three million, one hundred twenty-two thousand, one hundred seventy-two".