45166623 has 4 divisors (see below), whose sum is σ = 60222168. Its totient is φ = 30111080.

The previous prime is 45166619. The next prime is 45166669. The reversal of 45166623 is 32666154.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45166623 - 2² = 45166619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45166673) 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, 7527768 + ... + 7527773.

It is an arithmetic number, because the mean of its divisors is an integer number (15055542).

Almost surely, 2^45166623 is an apocalyptic number.

45166623 is a deficient number, since it is larger than the sum of its proper divisors (15055545).

45166623 is a wasteful number, since it uses less digits than its factorization.

45166623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15055544.

The product of its digits is 25920, while the sum is 33.

The square root of 45166623 is about 6720.6118025073. The cubic root of 45166623 is about 356.1277972983.

The spelling of 45166623 in words is "forty-five million, one hundred sixty-six thousand, six hundred twenty-three".