12456957 has 8 divisors (see below), whose sum is σ = 16819840. Its totient is φ = 8199360.

The previous prime is 12456943. The next prime is 12456991. The reversal of 12456957 is 75965421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12456957 - 2¹⁸ = 12194813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12455957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26044 + ... + 26517.

It is an arithmetic number, because the mean of its divisors is an integer number (2102480).

Almost surely, 2^12456957 is an apocalyptic number.

It is an amenable number.

12456957 is a deficient number, since it is larger than the sum of its proper divisors (4362883).

12456957 is an equidigital number, since it uses as much as digits as its factorization.

12456957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52643.

The product of its digits is 75600, while the sum is 39.

The square root of 12456957 is about 3529.4414572280. The cubic root of 12456957 is about 231.8127514578.

The spelling of 12456957 in words is "twelve million, four hundred fifty-six thousand, nine hundred fifty-seven".