23431275 has 144 divisors (see below), whose sum is σ = 54163200. Its totient is φ = 9797760.

The previous prime is 23431267. The next prime is 23431277. The reversal of 23431275 is 57213432.

23431275 = 46³ + 47³ + ... + 99³.

It is not a de Polignac number, because 23431275 - 2³ = 23431267 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

Its product of digits (5040) is a multiple of the sum of its prime divisors (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23431277) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 807961 + ... + 807989.

Almost surely, 2^23431275 is an apocalyptic number.

23431275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23431275 is an abundant number, since it is smaller than the sum of its proper divisors (30731925).

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

23431275 is a wasteful number, since it uses less digits than its factorization.

23431275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 63 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 23431275 is about 4840.5862248286. The cubic root of 23431275 is about 286.1532220530.

The spelling of 23431275 in words is "twenty-three million, four hundred thirty-one thousand, two hundred seventy-five".