23602139 has 12 divisors (see below), whose sum is σ = 26158440. Its totient is φ = 21278400.

The previous prime is 23602133. The next prime is 23602147. The reversal of 23602139 is 93120632.

It is not a de Polignac number, because 23602139 - 2²⁰ = 22553563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23602133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15107 + ... + 16595.

It is an arithmetic number, because the mean of its divisors is an integer number (2179870).

Almost surely, 2^23602139 is an apocalyptic number.

23602139 is a deficient number, since it is larger than the sum of its proper divisors (2556301).

23602139 is a wasteful number, since it uses less digits than its factorization.

23602139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1642 (or 1631 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 23602139 is about 4858.2032686992. The cubic root of 23602139 is about 286.8470940653.

The spelling of 23602139 in words is "twenty-three million, six hundred two thousand, one hundred thirty-nine".