57109161 has 16 divisors (see below), whose sum is σ = 82022400. Its totient is φ = 35241360.

The previous prime is 57109153. The next prime is 57109177. The reversal of 57109161 is 16190175.

It is not a de Polignac number, because 57109161 - 2³ = 57109153 is a prime.

It is a super-2 number, since 2×57109161² = 6522912540247842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57107161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11211 + ... + 15488.

It is an arithmetic number, because the mean of its divisors is an integer number (5126400).

Almost surely, 2^57109161 is an apocalyptic number.

It is an amenable number.

57109161 is a deficient number, since it is larger than the sum of its proper divisors (24913239).

57109161 is a wasteful number, since it uses less digits than its factorization.

57109161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26756.

The product of its (nonzero) digits is 1890, while the sum is 30.

The square root of 57109161 is about 7557.0603411644. The cubic root of 57109161 is about 385.0956326215.

The spelling of 57109161 in words is "fifty-seven million, one hundred nine thousand, one hundred sixty-one".