57131407 has 8 divisors (see below), whose sum is σ = 60720192. Its totient is φ = 53568000.

The previous prime is 57131377. The next prime is 57131413. The reversal of 57131407 is 70413175.

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 57131407 - 2⁷ = 57131279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57131467) 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, 1594 + ... + 10807.

It is an arithmetic number, because the mean of its divisors is an integer number (7590024).

Almost surely, 2^57131407 is an apocalyptic number.

57131407 is a deficient number, since it is larger than the sum of its proper divisors (3588785).

57131407 is a wasteful number, since it uses less digits than its factorization.

57131407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12689.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 57131407 is about 7558.5320664796. The cubic root of 57131407 is about 385.1456288344.

The spelling of 57131407 in words is "fifty-seven million, one hundred thirty-one thousand, four hundred seven".