11507139 has 12 divisors (see below), whose sum is σ = 18996016. Its totient is φ = 6575472.

The previous prime is 11507137. The next prime is 11507143. The reversal of 11507139 is 93170511.

It is a happy number.

It is not a de Polignac number, because 11507139 - 2¹ = 11507137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11507137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91264 + ... + 91389.

Almost surely, 2^11507139 is an apocalyptic number.

11507139 is a deficient number, since it is larger than the sum of its proper divisors (7488877).

11507139 is a wasteful number, since it uses less digits than its factorization.

11507139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182666 (or 182663 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 27.

The square root of 11507139 is about 3392.2174163812. The cubic root of 11507139 is about 225.7645693551.

The spelling of 11507139 in words is "eleven million, five hundred seven thousand, one hundred thirty-nine".