22957031 has 4 divisors (see below), whose sum is σ = 23018952. Its totient is φ = 22895112.

The previous prime is 22957027. The next prime is 22957037. The reversal of 22957031 is 13075922.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22957031 - 2² = 22957027 is a prime.

It is a super-2 number, since 2×22957031² = 1054050544669922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22956985 and 22957003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22957037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30401 + ... + 31146.

It is an arithmetic number, because the mean of its divisors is an integer number (5754738).

Almost surely, 2^22957031 is an apocalyptic number.

22957031 is a deficient number, since it is larger than the sum of its proper divisors (61921).

22957031 is an equidigital number, since it uses as much as digits as its factorization.

22957031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61920.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 22957031 is about 4791.3496011041. The cubic root of 22957031 is about 284.2094888592.

The spelling of 22957031 in words is "twenty-two million, nine hundred fifty-seven thousand, thirty-one".