45138508 has 6 divisors (see below), whose sum is σ = 78992396. Its totient is φ = 22569252.

The previous prime is 45138497. The next prime is 45138551. The reversal of 45138508 is 80583154.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5642310 + ... + 5642317.

Almost surely, 2^45138508 is an apocalyptic number.

It is an amenable number.

45138508 is a deficient number, since it is larger than the sum of its proper divisors (33853888).

45138508 is a wasteful number, since it uses less digits than its factorization.

45138508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11284631 (or 11284629 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 45138508 is about 6718.5197774510. The cubic root of 45138508 is about 356.0538886567.

The spelling of 45138508 in words is "forty-five million, one hundred thirty-eight thousand, five hundred eight".