45181936 has 20 divisors (see below), whose sum is σ = 91346832. Its totient is φ = 21608576.

The previous prime is 45181883. The next prime is 45181967. The reversal of 45181936 is 63918154.

It is a junction number, because it is equal to n+sod(n) for n = 45181895 and 45181904.

It is a congruent number.

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, 61021 + ... + 61756.

Almost surely, 2^45181936 is an apocalyptic number.

45181936 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

45181936 is an abundant number, since it is smaller than the sum of its proper divisors (46164896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45181936 is a wasteful number, since it uses less digits than its factorization.

45181936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122808 (or 122802 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The square root of 45181936 is about 6721.7509623609. The cubic root of 45181936 is about 356.1680391732.

The spelling of 45181936 in words is "forty-five million, one hundred eighty-one thousand, nine hundred thirty-six".