12657357 has 16 divisors (see below), whose sum is σ = 18807360. Its totient is φ = 8413200.

The previous prime is 12657353. The next prime is 12657377. The reversal of 12657357 is 75375621.

12657357 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12657357 - 2² = 12657353 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12657353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15007 + ... + 15827.

It is an arithmetic number, because the mean of its divisors is an integer number (1175460).

Almost surely, 2^12657357 is an apocalyptic number.

It is an amenable number.

12657357 is a deficient number, since it is larger than the sum of its proper divisors (6150003).

12657357 is an equidigital number, since it uses as much as digits as its factorization.

12657357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401 (or 1395 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 12657357 is about 3557.7179483484. The cubic root of 12657357 is about 233.0492322302.

The spelling of 12657357 in words is "twelve million, six hundred fifty-seven thousand, three hundred fifty-seven".