45139056 has 40 divisors (see below), whose sum is σ = 116909184. Its totient is φ = 15007680.

The previous prime is 45139049. The next prime is 45139057. The reversal of 45139056 is 65093154.

It is a happy number.

It is a super-2 number, since 2×45139056² = 4075068753142272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45139057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22411 + ... + 24341.

Almost surely, 2^45139056 is an apocalyptic number.

It is an amenable number.

45139056 is an abundant number, since it is smaller than the sum of its proper divisors (71770128).

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

45139056 is a wasteful number, since it uses less digits than its factorization.

45139056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429 (or 2423 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 45139056 is about 6718.5605601200. The cubic root of 45139056 is about 356.0553295309.

The spelling of 45139056 in words is "forty-five million, one hundred thirty-nine thousand, fifty-six".