57129142 has 16 divisors (see below), whose sum is σ = 98140320. Its totient is φ = 24432768.

The previous prime is 57129131. The next prime is 57129151. The reversal of 57129142 is 24192175.

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, 3118 + ... + 11134.

It is an arithmetic number, because the mean of its divisors is an integer number (6133770).

Almost surely, 2^57129142 is an apocalyptic number.

57129142 is a deficient number, since it is larger than the sum of its proper divisors (41011178).

57129142 is a wasteful number, since it uses less digits than its factorization.

57129142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8535.

The product of its digits is 5040, while the sum is 31.

The square root of 57129142 is about 7558.3822343144. The cubic root of 57129142 is about 385.1405390107.

The spelling of 57129142 in words is "fifty-seven million, one hundred twenty-nine thousand, one hundred forty-two".