23172524 has 12 divisors (see below), whose sum is σ = 40970664. Its totient is φ = 11466624.

The previous prime is 23172511. The next prime is 23172529. The reversal of 23172524 is 42527132.

It is a junction number, because it is equal to n+sod(n) for n = 23172493 and 23172502.

It is not an unprimeable number, because it can be changed into a prime (23172529) 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, 29474 + ... + 30249.

It is an arithmetic number, because the mean of its divisors is an integer number (3414222).

Almost surely, 2^23172524 is an apocalyptic number.

It is an amenable number.

23172524 is a deficient number, since it is larger than the sum of its proper divisors (17798140).

23172524 is a wasteful number, since it uses less digits than its factorization.

23172524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59824 (or 59822 counting only the distinct ones).

The product of its digits is 3360, while the sum is 26.

The square root of 23172524 is about 4813.7847895393. The cubic root of 23172524 is about 285.0959931079.

Adding to 23172524 its reverse (42527132), we get a palindrome (65699656).

The spelling of 23172524 in words is "twenty-three million, one hundred seventy-two thousand, five hundred twenty-four".