12537172 has 12 divisors (see below), whose sum is σ = 21967456. Its totient is φ = 6260760.

The previous prime is 12537167. The next prime is 12537181. The reversal of 12537172 is 27173521.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12537172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3097 + ... + 5887.

Almost surely, 2^12537172 is an apocalyptic number.

It is an amenable number.

12537172 is a deficient number, since it is larger than the sum of its proper divisors (9430284).

12537172 is a wasteful number, since it uses less digits than its factorization.

12537172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3918 (or 3916 counting only the distinct ones).

The product of its digits is 2940, while the sum is 28.

The square root of 12537172 is about 3540.7869181864. The cubic root of 12537172 is about 232.3092635394.

The spelling of 12537172 in words is "twelve million, five hundred thirty-seven thousand, one hundred seventy-two".