57157144 has 32 divisors (see below), whose sum is σ = 120949200. Its totient is φ = 25083520.

The previous prime is 57157127. The next prime is 57157169. The reversal of 57157144 is 44175175.

57157144 = T₄₃₂ + T₄₃₃ + ... + T₇₅₀.

It is a super-2 number, since 2×57157144² = 6533878220473472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8647 + ... + 13750.

Almost surely, 2^57157144 is an apocalyptic number.

It is an amenable number.

57157144 is an abundant number, since it is smaller than the sum of its proper divisors (63792056).

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

57157144 is a wasteful number, since it uses less digits than its factorization.

57157144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22443 (or 22439 counting only the distinct ones).

The product of its digits is 19600, while the sum is 34.

The square root of 57157144 is about 7560.2343879009. The cubic root of 57157144 is about 385.2034546169.

The spelling of 57157144 in words is "fifty-seven million, one hundred fifty-seven thousand, one hundred forty-four".