115865536 has 28 divisors (see below), whose sum is σ = 239920272. Its totient is φ = 55413248.

The previous prime is 115865531. The next prime is 115865551. The reversal of 115865536 is 635568511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115865531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37885 + ... + 40828.

Almost surely, 2^115865536 is an apocalyptic number.

115865536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

115865536 is an abundant number, since it is smaller than the sum of its proper divisors (124054736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115865536 is an equidigital number, since it uses as much as digits as its factorization.

115865536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78748 (or 78738 counting only the distinct ones).

The product of its digits is 108000, while the sum is 40.

The square root of 115865536 is about 10764.0854697461. The cubic root of 115865536 is about 487.5113804926.

The spelling of 115865536 in words is "one hundred fifteen million, eight hundred sixty-five thousand, five hundred thirty-six".