12657137 has 8 divisors (see below), whose sum is σ = 13219200. Its totient is φ = 12103504.

The previous prime is 12657131. The next prime is 12657167. The reversal of 12657137 is 73175621.

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

It is a cyclic number.

It is not a de Polignac number, because 12657137 - 2⁴ = 12657121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12657131) 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, 1064 + ... + 5142.

It is an arithmetic number, because the mean of its divisors is an integer number (1652400).

Almost surely, 2^12657137 is an apocalyptic number.

It is an amenable number.

12657137 is a deficient number, since it is larger than the sum of its proper divisors (562063).

12657137 is a wasteful number, since it uses less digits than its factorization.

12657137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4215.

The product of its digits is 8820, while the sum is 32.

The square root of 12657137 is about 3557.6870295179. The cubic root of 12657137 is about 233.0478819976.

The spelling of 12657137 in words is "twelve million, six hundred fifty-seven thousand, one hundred thirty-seven".