45918123 has 4 divisors (see below), whose sum is σ = 61224168. Its totient is φ = 30612080.

The previous prime is 45918113. The next prime is 45918127. The reversal of 45918123 is 32181954.

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 45918123 - 2⁵ = 45918091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45918127) 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, 7653018 + ... + 7653023.

It is an arithmetic number, because the mean of its divisors is an integer number (15306042).

Almost surely, 2^45918123 is an apocalyptic number.

45918123 is a deficient number, since it is larger than the sum of its proper divisors (15306045).

45918123 is a wasteful number, since it uses less digits than its factorization.

45918123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15306044.

The product of its digits is 8640, while the sum is 33.

The square root of 45918123 is about 6776.2912422652. The cubic root of 45918123 is about 358.0920744623.

The spelling of 45918123 in words is "forty-five million, nine hundred eighteen thousand, one hundred twenty-three".