115643644 has 12 divisors (see below), whose sum is σ = 202451704. Its totient is φ = 57800304.

The previous prime is 115643629. The next prime is 115643669. The reversal of 115643644 is 446346511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18007 + ... + 23569.

Almost surely, 2^115643644 is an apocalyptic number.

It is an amenable number.

115643644 is a deficient number, since it is larger than the sum of its proper divisors (86808060).

115643644 is a wasteful number, since it uses less digits than its factorization.

115643644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10764 (or 10762 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 115643644 is about 10753.7734772497. The cubic root of 115643644 is about 487.1999735315.

The spelling of 115643644 in words is "one hundred fifteen million, six hundred forty-three thousand, six hundred forty-four".