57161284 has 6 divisors (see below), whose sum is σ = 100032254. Its totient is φ = 28580640.

The previous prime is 57161281. The next prime is 57161287. The reversal of 57161284 is 48216175.

It is an interprime number because it is at equal distance from previous prime (57161281) and next prime (57161287).

It can be written as a sum of positive squares in only one way, i.e., 52417600 + 4743684 = 7240^2 + 2178^2 .

It is not an unprimeable number, because it can be changed into a prime (57161281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7145157 + ... + 7145164.

Almost surely, 2^57161284 is an apocalyptic number.

It is an amenable number.

57161284 is a deficient number, since it is larger than the sum of its proper divisors (42870970).

57161284 is a wasteful number, since it uses less digits than its factorization.

57161284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14290325 (or 14290323 counting only the distinct ones).

The product of its digits is 13440, while the sum is 34.

The square root of 57161284 is about 7560.5081839781. The cubic root of 57161284 is about 385.2127547305.

The spelling of 57161284 in words is "fifty-seven million, one hundred sixty-one thousand, two hundred eighty-four".