57143143 has 4 divisors (see below), whose sum is σ = 57948048. Its totient is φ = 56338240.

The previous prime is 57143131. The next prime is 57143147. The reversal of 57143143 is 34134175.

57143143 is nontrivially palindromic in base 4.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57143143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57143147) 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, 402346 + ... + 402487.

It is an arithmetic number, because the mean of its divisors is an integer number (14487012).

Almost surely, 2^57143143 is an apocalyptic number.

57143143 is a deficient number, since it is larger than the sum of its proper divisors (804905).

57143143 is an equidigital number, since it uses as much as digits as its factorization.

57143143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804904.

The product of its digits is 5040, while the sum is 28.

The square root of 57143143 is about 7559.3083678337. The cubic root of 57143143 is about 385.1719993830.

The spelling of 57143143 in words is "fifty-seven million, one hundred forty-three thousand, one hundred forty-three".