57147065 has 32 divisors (see below), whose sum is σ = 74511360. Its totient is φ = 41969664.

The previous prime is 57147061. The next prime is 57147067. The reversal of 57147065 is 56074175.

It is not a de Polignac number, because 57147065 - 2² = 57147061 is a prime.

It is a super-2 number, since 2×57147065² = 6531574076228450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57147061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 524231 + ... + 524339.

It is an arithmetic number, because the mean of its divisors is an integer number (2328480).

Almost surely, 2^57147065 is an apocalyptic number.

It is an amenable number.

57147065 is a deficient number, since it is larger than the sum of its proper divisors (17364295).

57147065 is a wasteful number, since it uses less digits than its factorization.

57147065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 57147065 is about 7559.5677786498. The cubic root of 57147065 is about 385.1808112307.

The spelling of 57147065 in words is "fifty-seven million, one hundred forty-seven thousand, sixty-five".