57131146 has 4 divisors (see below), whose sum is σ = 85696722. Its totient is φ = 28565572.

The previous prime is 57131143. The next prime is 57131153. The reversal of 57131146 is 64113175.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 56625625 + 505521 = 7525^2 + 711^2 .

It is not an unprimeable number, because it can be changed into a prime (57131143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14282785 + ... + 14282788.

Almost surely, 2^57131146 is an apocalyptic number.

57131146 is a deficient number, since it is larger than the sum of its proper divisors (28565576).

57131146 is a wasteful number, since it uses less digits than its factorization.

57131146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28565575.

The product of its digits is 2520, while the sum is 28.

The square root of 57131146 is about 7558.5148012027. The cubic root of 57131146 is about 385.1450423318.

It can be divided in two parts, 5713 and 1146, that added together give a cube (6859 = 19³).

The spelling of 57131146 in words is "fifty-seven million, one hundred thirty-one thousand, one hundred forty-six".