57144357 has 6 divisors (see below), whose sum is σ = 82541862. Its totient is φ = 38096232.

The previous prime is 57144337. The next prime is 57144359. The reversal of 57144357 is 75344175.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 39955041 + 17189316 = 6321^2 + 4146^2 .

It is not a de Polignac number, because 57144357 - 2¹⁵ = 57111589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57144359) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3174678 + ... + 3174695.

It is an arithmetic number, because the mean of its divisors is an integer number (13756977).

Almost surely, 2^57144357 is an apocalyptic number.

It is an amenable number.

57144357 is a deficient number, since it is larger than the sum of its proper divisors (25397505).

57144357 is a wasteful number, since it uses less digits than its factorization.

57144357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6349379 (or 6349376 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 57144357 is about 7559.3886657586. The cubic root of 57144357 is about 385.1747270098.

The spelling of 57144357 in words is "fifty-seven million, one hundred forty-four thousand, three hundred fifty-seven".