57143291 has 2 divisors, whose sum is σ = 57143292. Its totient is φ = 57143290.

The previous prime is 57143249. The next prime is 57143297. The reversal of 57143291 is 19234175.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57143291 - 2¹⁴ = 57126907 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57143297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28571645 + 28571646.

It is an arithmetic number, because the mean of its divisors is an integer number (28571646).

Almost surely, 2^57143291 is an apocalyptic number.

57143291 is a deficient number, since it is larger than the sum of its proper divisors (1).

57143291 is an equidigital number, since it uses as much as digits as its factorization.

57143291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 32.

The square root of 57143291 is about 7559.3181570827. The cubic root of 57143291 is about 385.1723319129.

The spelling of 57143291 in words is "fifty-seven million, one hundred forty-three thousand, two hundred ninety-one".