57139143 has 8 divisors (see below), whose sum is σ = 76342656. Its totient is φ = 38014200.

The previous prime is 57139133. The next prime is 57139151. The reversal of 57139143 is 34193175.

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

It is not a de Polignac number, because 57139143 - 2⁶ = 57139079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57139123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17923 + ... + 20868.

It is an arithmetic number, because the mean of its divisors is an integer number (9542832).

Almost surely, 2^57139143 is an apocalyptic number.

57139143 is a deficient number, since it is larger than the sum of its proper divisors (19203513).

57139143 is a wasteful number, since it uses less digits than its factorization.

57139143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39285.

The product of its digits is 11340, while the sum is 33.

The square root of 57139143 is about 7559.0437887341. The cubic root of 57139143 is about 385.1630118716.

The spelling of 57139143 in words is "fifty-seven million, one hundred thirty-nine thousand, one hundred forty-three".