57129937 has 8 divisors (see below), whose sum is σ = 58145472. Its totient is φ = 56120400.

The previous prime is 57129923. The next prime is 57129949. The reversal of 57129937 is 73992175.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57129937 - 2¹⁹ = 56605649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57129893 and 57129902.

It is not an unprimeable number, because it can be changed into a prime (57129967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20487 + ... + 23107.

It is an arithmetic number, because the mean of its divisors is an integer number (7268184).

Almost surely, 2^57129937 is an apocalyptic number.

It is an amenable number.

57129937 is a deficient number, since it is larger than the sum of its proper divisors (1015535).

57129937 is a wasteful number, since it uses less digits than its factorization.

57129937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999.

The product of its digits is 119070, while the sum is 43.

The square root of 57129937 is about 7558.4348247504. The cubic root of 57129937 is about 385.1423255204.

The spelling of 57129937 in words is "fifty-seven million, one hundred twenty-nine thousand, nine hundred thirty-seven".