57131126 has 24 divisors (see below), whose sum is σ = 96843600. Its totient is φ = 25218336.

The previous prime is 57131117. The next prime is 57131143. The reversal of 57131126 is 62113175.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 57131095 and 57131104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4100 + ... + 11448.

It is an arithmetic number, because the mean of its divisors is an integer number (4035150).

Almost surely, 2^57131126 is an apocalyptic number.

57131126 is a deficient number, since it is larger than the sum of its proper divisors (39712474).

57131126 is a wasteful number, since it uses less digits than its factorization.

57131126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7400 (or 7387 counting only the distinct ones).

The product of its digits is 1260, while the sum is 26.

The square root of 57131126 is about 7558.5134781913. The cubic root of 57131126 is about 385.1449973890.

The spelling of 57131126 in words is "fifty-seven million, one hundred thirty-one thousand, one hundred twenty-six".