45139412 has 12 divisors (see below), whose sum is σ = 79408896. Its totient is φ = 22451160.

The previous prime is 45139397. The next prime is 45139429. The reversal of 45139412 is 21493154.

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, 28778 + ... + 30305.

It is an arithmetic number, because the mean of its divisors is an integer number (6617408).

Almost surely, 2^45139412 is an apocalyptic number.

It is an amenable number.

45139412 is a deficient number, since it is larger than the sum of its proper divisors (34269484).

45139412 is a wasteful number, since it uses less digits than its factorization.

45139412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59278 (or 59276 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 45139412 is about 6718.5870538380. The cubic root of 45139412 is about 356.0562655671.

The spelling of 45139412 in words is "forty-five million, one hundred thirty-nine thousand, four hundred twelve".