57142142 has 8 divisors (see below), whose sum is σ = 85746600. Its totient is φ = 28559944.

The previous prime is 57142133. The next prime is 57142147. The reversal of 57142142 is 24124175.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57142147) 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 3 ways as a sum of consecutive naturals, for example, 4484 + ... + 11592.

It is an arithmetic number, because the mean of its divisors is an integer number (10718325).

Almost surely, 2^57142142 is an apocalyptic number.

57142142 is a deficient number, since it is larger than the sum of its proper divisors (28604458).

57142142 is a wasteful number, since it uses less digits than its factorization.

57142142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11130.

The product of its digits is 2240, while the sum is 26.

The square root of 57142142 is about 7559.2421577827. The cubic root of 57142142 is about 385.1697502976.

The spelling of 57142142 in words is "fifty-seven million, one hundred forty-two thousand, one hundred forty-two".