45164223 has 72 divisors (see below), whose sum is σ = 79895088. Its totient is φ = 25256448.

The previous prime is 45164213. The next prime is 45164237. The reversal of 45164223 is 32246154.

It is not a de Polignac number, because 45164223 - 2⁹ = 45163711 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45164213) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1557373 + ... + 1557401.

It is an arithmetic number, because the mean of its divisors is an integer number (1109654).

Almost surely, 2^45164223 is an apocalyptic number.

45164223 is a deficient number, since it is larger than the sum of its proper divisors (34730865).

45164223 is a wasteful number, since it uses less digits than its factorization.

45164223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 62 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 45164223 is about 6720.4332449627. The cubic root of 45164223 is about 356.1214893818.

The spelling of 45164223 in words is "forty-five million, one hundred sixty-four thousand, two hundred twenty-three".