12506957 has 4 divisors (see below), whose sum is σ = 12693696. Its totient is φ = 12320220.

The previous prime is 12506947. The next prime is 12506969. The reversal of 12506957 is 75960521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12506957 - 2⁴ = 12506941 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 (12506947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93269 + ... + 93402.

It is an arithmetic number, because the mean of its divisors is an integer number (3173424).

Almost surely, 2^12506957 is an apocalyptic number.

It is an amenable number.

12506957 is a deficient number, since it is larger than the sum of its proper divisors (186739).

12506957 is an equidigital number, since it uses as much as digits as its factorization.

12506957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186738.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 12506957 is about 3536.5176374507. The cubic root of 12506957 is about 232.1224890735.

The spelling of 12506957 in words is "twelve million, five hundred six thousand, nine hundred fifty-seven".