45188168 has 16 divisors (see below), whose sum is σ = 85889580. Its totient is φ = 22284288.

The previous prime is 45188167. The next prime is 45188179. The reversal of 45188168 is 86188154.

It can be written as a sum of positive squares in 2 ways, for example, as 45131524 + 56644 = 6718^2 + 238^2 .

It is not an unprimeable number, because it can be changed into a prime (45188161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38105 + ... + 39272.

Almost surely, 2^45188168 is an apocalyptic number.

It is an amenable number.

45188168 is a deficient number, since it is larger than the sum of its proper divisors (40701412).

45188168 is a wasteful number, since it uses less digits than its factorization.

45188168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77456 (or 77452 counting only the distinct ones).

The product of its digits is 61440, while the sum is 41.

The square root of 45188168 is about 6722.2145160654. The cubic root of 45188168 is about 356.1844139856.

The spelling of 45188168 in words is "forty-five million, one hundred eighty-eight thousand, one hundred sixty-eight".