45138156 has 48 divisors (see below), whose sum is σ = 120739584. Its totient is φ = 12856896.

The previous prime is 45138143. The next prime is 45138173. The reversal of 45138156 is 65183154.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36606 + ... + 37818.

It is an arithmetic number, because the mean of its divisors is an integer number (2515408).

Almost surely, 2^45138156 is an apocalyptic number.

It is an amenable number.

45138156 is an abundant number, since it is smaller than the sum of its proper divisors (75601428).

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

45138156 is a wasteful number, since it uses less digits than its factorization.

45138156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670 (or 1668 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The square root of 45138156 is about 6718.4935811534. The cubic root of 45138156 is about 356.0529631255.

The spelling of 45138156 in words is "forty-five million, one hundred thirty-eight thousand, one hundred fifty-six".