12956157 has 12 divisors (see below), whose sum is σ = 19699680. Its totient is φ = 8182728.

The previous prime is 12956149. The next prime is 12956183. The reversal of 12956157 is 75165921.

It is not a de Polignac number, because 12956157 - 2³ = 12956149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12956117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37713 + ... + 38054.

It is an arithmetic number, because the mean of its divisors is an integer number (1641640).

Almost surely, 2^12956157 is an apocalyptic number.

It is an amenable number.

12956157 is a deficient number, since it is larger than the sum of its proper divisors (6743523).

12956157 is a wasteful number, since it uses less digits than its factorization.

12956157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75792 (or 75789 counting only the distinct ones).

The product of its digits is 18900, while the sum is 36.

The square root of 12956157 is about 3599.4662104262. The cubic root of 12956157 is about 234.8688388349.

The spelling of 12956157 in words is "twelve million, nine hundred fifty-six thousand, one hundred fifty-seven".