57148161 has 24 divisors (see below), whose sum is σ = 90709344. Its totient is φ = 31893120.

The previous prime is 57148141. The next prime is 57148177. The reversal of 57148161 is 16184175.

It is a happy number.

It is not a de Polignac number, because 57148161 - 2⁵ = 57148129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57148111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1801 + ... + 10841.

It is an arithmetic number, because the mean of its divisors is an integer number (3779556).

Almost surely, 2^57148161 is an apocalyptic number.

It is an amenable number.

57148161 is a deficient number, since it is larger than the sum of its proper divisors (33561183).

57148161 is a wasteful number, since it uses less digits than its factorization.

57148161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9101 (or 9094 counting only the distinct ones).

The product of its digits is 6720, while the sum is 33.

The square root of 57148161 is about 7559.6402692192. The cubic root of 57148161 is about 385.1832736230.

The spelling of 57148161 in words is "fifty-seven million, one hundred forty-eight thousand, one hundred sixty-one".