45211138 has 16 divisors (see below), whose sum is σ = 78231744. Its totient is φ = 19194480.

The previous prime is 45211091. The next prime is 45211171. The reversal of 45211138 is 83111254.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13593 + ... + 16588.

It is an arithmetic number, because the mean of its divisors is an integer number (4889484).

Almost surely, 2^45211138 is an apocalyptic number.

45211138 is a deficient number, since it is larger than the sum of its proper divisors (33020606).

45211138 is a wasteful number, since it uses less digits than its factorization.

45211138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30297.

The product of its digits is 960, while the sum is 25.

The square root of 45211138 is about 6723.9228133583. The cubic root of 45211138 is about 356.2447555194.

The spelling of 45211138 in words is "forty-five million, two hundred eleven thousand, one hundred thirty-eight".