23136172 has 24 divisors (see below), whose sum is σ = 41469120. Its totient is φ = 11291280.

The previous prime is 23136163. The next prime is 23136181. The reversal of 23136172 is 27163132.

It is an interprime number because it is at equal distance from previous prime (23136163) and next prime (23136181).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34779 + ... + 35437.

It is an arithmetic number, because the mean of its divisors is an integer number (1727880).

Almost surely, 2^23136172 is an apocalyptic number.

It is an amenable number.

23136172 is a deficient number, since it is larger than the sum of its proper divisors (18332948).

23136172 is a wasteful number, since it uses less digits than its factorization.

23136172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861 (or 859 counting only the distinct ones).

The product of its digits is 1512, while the sum is 25.

The square root of 23136172 is about 4810.0074844017. The cubic root of 23136172 is about 284.9468332136.

The spelling of 23136172 in words is "twenty-three million, one hundred thirty-six thousand, one hundred seventy-two".