57144164 has 24 divisors (see below), whose sum is σ = 124678848. Its totient is φ = 22263840.

The previous prime is 57144163. The next prime is 57144173. The reversal of 57144164 is 46144175.

It is a self number, because there is not a number n which added to its sum of digits gives 57144164.

It is not an unprimeable number, because it can be changed into a prime (57144161) 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, 92459 + ... + 93074.

It is an arithmetic number, because the mean of its divisors is an integer number (5194952).

Almost surely, 2^57144164 is an apocalyptic number.

It is an amenable number.

57144164 is an abundant number, since it is smaller than the sum of its proper divisors (67534684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57144164 is a wasteful number, since it uses less digits than its factorization.

57144164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185555 (or 185553 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 57144164 is about 7559.3759001653. The cubic root of 57144164 is about 385.1742933781.

The spelling of 57144164 in words is "fifty-seven million, one hundred forty-four thousand, one hundred sixty-four".