45568161 has 6 divisors (see below), whose sum is σ = 65820690. Its totient is φ = 30378768.

The previous prime is 45568153. The next prime is 45568163. The reversal of 45568161 is 16186554.

It can be written as a sum of positive squares in only one way, i.e., 45360225 + 207936 = 6735^2 + 456^2 .

It is not a de Polignac number, because 45568161 - 2³ = 45568153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45568163) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2531556 + ... + 2531573.

It is an arithmetic number, because the mean of its divisors is an integer number (10970115).

Almost surely, 2^45568161 is an apocalyptic number.

It is an amenable number.

45568161 is a deficient number, since it is larger than the sum of its proper divisors (20252529).

45568161 is a wasteful number, since it uses less digits than its factorization.

45568161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5063135 (or 5063132 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 45568161 is about 6750.4193203089. The cubic root of 45568161 is about 357.1800283064.

The spelling of 45568161 in words is "forty-five million, five hundred sixty-eight thousand, one hundred sixty-one".