12972975 has 12 divisors (see below), whose sum is σ = 21448776. Its totient is φ = 6918880.

The previous prime is 12972959. The next prime is 12973013. The reversal of 12972975 is 57927921.

It is not a de Polignac number, because 12972975 - 2⁴ = 12972959 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86412 + ... + 86561.

It is an arithmetic number, because the mean of its divisors is an integer number (1787398).

Almost surely, 2^12972975 is an apocalyptic number.

12972975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12972975 is a deficient number, since it is larger than the sum of its proper divisors (8475801).

12972975 is a wasteful number, since it uses less digits than its factorization.

12972975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172986 (or 172981 counting only the distinct ones).

The product of its digits is 79380, while the sum is 42.

The square root of 12972975 is about 3601.8016325167. The cubic root of 12972975 is about 234.9704202999.

The spelling of 12972975 in words is "twelve million, nine hundred seventy-two thousand, nine hundred seventy-five".