23171272 has 32 divisors (see below), whose sum is σ = 46228320. Its totient is φ = 10850560.

The previous prime is 23171237. The next prime is 23171299. The reversal of 23171272 is 27217132.

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, 46947 + ... + 47437.

It is an arithmetic number, because the mean of its divisors is an integer number (1444635).

Almost surely, 2^23171272 is an apocalyptic number.

It is an amenable number.

23171272 is a deficient number, since it is larger than the sum of its proper divisors (23057048).

23171272 is a wasteful number, since it uses less digits than its factorization.

23171272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861 (or 857 counting only the distinct ones).

The product of its digits is 1176, while the sum is 25.

The square root of 23171272 is about 4813.6547445782. The cubic root of 23171272 is about 285.0908584836.

The spelling of 23171272 in words is "twenty-three million, one hundred seventy-one thousand, two hundred seventy-two".