57857161 has 2 divisors, whose sum is σ = 57857162. Its totient is φ = 57857160.

The previous prime is 57857153. The next prime is 57857179. The reversal of 57857161 is 16175875.

57857161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30869136 + 26988025 = 5556^2 + 5195^2 .

It is a cyclic number.

It is not a de Polignac number, because 57857161 - 2³ = 57857153 is a prime.

It is not a weakly prime, because it can be changed into another prime (57857131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28928580 + 28928581.

It is an arithmetic number, because the mean of its divisors is an integer number (28928581).

Almost surely, 2^57857161 is an apocalyptic number.

It is an amenable number.

57857161 is a deficient number, since it is larger than the sum of its proper divisors (1).

57857161 is an equidigital number, since it uses as much as digits as its factorization.

57857161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58800, while the sum is 40.

The square root of 57857161 is about 7606.3894851631. The cubic root of 57857161 is about 386.7696372446.

The spelling of 57857161 in words is "fifty-seven million, eight hundred fifty-seven thousand, one hundred sixty-one".