57145356 has 36 divisors (see below), whose sum is σ = 144685632. Its totient is φ = 19017504.

The previous prime is 57145351. The next prime is 57145357. The reversal of 57145356 is 65354175.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 57145356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57145351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35685 + ... + 37251.

Almost surely, 2^57145356 is an apocalyptic number.

It is an amenable number.

57145356 is an abundant number, since it is smaller than the sum of its proper divisors (87540276).

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

57145356 is a wasteful number, since it uses less digits than its factorization.

57145356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2590 (or 2585 counting only the distinct ones).

The product of its digits is 63000, while the sum is 36.

The square root of 57145356 is about 7559.4547422417. The cubic root of 57145356 is about 385.1769715435.

The spelling of 57145356 in words is "fifty-seven million, one hundred forty-five thousand, three hundred fifty-six".