45185818 has 8 divisors (see below), whose sum is σ = 68063040. Its totient is φ = 22498140.

The previous prime is 45185807. The next prime is 45185849. The reversal of 45185818 is 81858154.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46788 + ... + 47743.

It is an arithmetic number, because the mean of its divisors is an integer number (8507880).

Almost surely, 2^45185818 is an apocalyptic number.

45185818 is a deficient number, since it is larger than the sum of its proper divisors (22877222).

45185818 is a wasteful number, since it uses less digits than its factorization.

45185818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94772.

The product of its digits is 51200, while the sum is 40.

The square root of 45185818 is about 6722.0397202040. The cubic root of 45185818 is about 356.1782394498.

The spelling of 45185818 in words is "forty-five million, one hundred eighty-five thousand, eight hundred eighteen".