57128112 has 40 divisors (see below), whose sum is σ = 163980080. Its totient is φ = 19042560.

The previous prime is 57128087. The next prime is 57128161. The reversal of 57128112 is 21182175.

57128112 is a `hidden beast` number, since 571 + 2 + 81 + 12 = 666.

It is a super-3 number, since 3×57128112³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 65689 + ... + 66552.

It is an arithmetic number, because the mean of its divisors is an integer number (4099502).

Almost surely, 2^57128112 is an apocalyptic number.

It is an amenable number.

57128112 is an abundant number, since it is smaller than the sum of its proper divisors (106851968).

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

57128112 is a wasteful number, since it uses less digits than its factorization.

57128112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132258 (or 132246 counting only the distinct ones).

The product of its digits is 1120, while the sum is 27.

The square root of 57128112 is about 7558.3140977337. The cubic root of 57128112 is about 385.1382243885.

It can be divided in two parts, 5712 and 8112, that added together give a cube (13824 = 24³).

The spelling of 57128112 in words is "fifty-seven million, one hundred twenty-eight thousand, one hundred twelve".