115963720 has 32 divisors (see below), whose sum is σ = 262683000. Its totient is φ = 46071808.

The previous prime is 115963709. The next prime is 115963739. The reversal of 115963720 is 27369511.

It can be written as a sum of positive squares in 4 ways, for example, as 88021924 + 27941796 = 9382^2 + 5286^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3769 + ... + 15688.

Almost surely, 2^115963720 is an apocalyptic number.

115963720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115963720 is an abundant number, since it is smaller than the sum of its proper divisors (146719280).

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

115963720 is a wasteful number, since it uses less digits than its factorization.

115963720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19617 (or 19613 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 115963720 is about 10768.6452258397. The cubic root of 115963720 is about 487.6490466902.

The spelling of 115963720 in words is "one hundred fifteen million, nine hundred sixty-three thousand, seven hundred twenty".