23139652 has 36 divisors (see below), whose sum is σ = 44260804. Its totient is φ = 10575360.

The previous prime is 23139647. The next prime is 23139659. The reversal of 23139652 is 25693132.

It can be written as a sum of positive squares in 6 ways, for example, as 4769856 + 18369796 = 2184^2 + 4286^2 .

It is a super-2 number, since 2×23139652² = 1070886989362208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23139659) 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, 42502 + ... + 43042.

Almost surely, 2^23139652 is an apocalyptic number.

It is an amenable number.

23139652 is a deficient number, since it is larger than the sum of its proper divisors (21121152).

23139652 is a wasteful number, since it uses less digits than its factorization.

23139652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 597 counting only the distinct ones).

The product of its digits is 9720, while the sum is 31.

The square root of 23139652 is about 4810.3692165987. The cubic root of 23139652 is about 284.9611191445.

The spelling of 23139652 in words is "twenty-three million, one hundred thirty-nine thousand, six hundred fifty-two".