45418191 has 64 divisors (see below), whose sum is σ = 78769152. Its totient is φ = 22643712.

The previous prime is 45418133. The next prime is 45418211. The reversal of 45418191 is 19181454.

It is not a de Polignac number, because 45418191 - 2⁷ = 45418063 is a prime.

Its product of digits (5760) is a multiple of the sum of its prime divisors (192).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45418091) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 622131 + ... + 622203.

It is an arithmetic number, because the mean of its divisors is an integer number (1230768).

Almost surely, 2^45418191 is an apocalyptic number.

45418191 is a deficient number, since it is larger than the sum of its proper divisors (33350961).

45418191 is a wasteful number, since it uses less digits than its factorization.

45418191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192.

The product of its digits is 5760, while the sum is 33.

The square root of 45418191 is about 6739.3019668212. The cubic root of 45418191 is about 356.7877576244.

The spelling of 45418191 in words is "forty-five million, four hundred eighteen thousand, one hundred ninety-one".