57105128 has 16 divisors (see below), whose sum is σ = 109684260. Its totient is φ = 27856000.

The previous prime is 57105119. The next prime is 57105173. The reversal of 57105128 is 82150175.

It can be written as a sum of positive squares in 2 ways, for example, as 50438404 + 6666724 = 7102^2 + 2582^2 .

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 57105128.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86723 + ... + 87378.

Almost surely, 2^57105128 is an apocalyptic number.

It is an amenable number.

57105128 is a deficient number, since it is larger than the sum of its proper divisors (52579132).

57105128 is a wasteful number, since it uses less digits than its factorization.

57105128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174148 (or 174144 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 57105128 is about 7556.7934998913. The cubic root of 57105128 is about 385.0865673669.

The spelling of 57105128 in words is "fifty-seven million, one hundred five thousand, one hundred twenty-eight".