57235143 has 32 divisors (see below), whose sum is σ = 90095616. Its totient is φ = 31642848.

The previous prime is 57235127. The next prime is 57235151. The reversal of 57235143 is 34153275.

It is not a de Polignac number, because 57235143 - 2⁴ = 57235127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57235143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57235103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101380 + ... + 101942.

It is an arithmetic number, because the mean of its divisors is an integer number (2815488).

Almost surely, 2^57235143 is an apocalyptic number.

57235143 is a deficient number, since it is larger than the sum of its proper divisors (32860473).

57235143 is a wasteful number, since it uses less digits than its factorization.

57235143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723.

The product of its digits is 12600, while the sum is 30.

The square root of 57235143 is about 7565.3911333123. The cubic root of 57235143 is about 385.3785964884.

The spelling of 57235143 in words is "fifty-seven million, two hundred thirty-five thousand, one hundred forty-three".