115972730 has 16 divisors (see below), whose sum is σ = 210668040. Its totient is φ = 45963072.

The previous prime is 115972697. The next prime is 115972733. The reversal of 115972730 is 37279511.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 115971361 + 1369 = 10769^2 + 37^2 .

It is not an unprimeable number, because it can be changed into a prime (115972733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52109 + ... + 54288.

Almost surely, 2^115972730 is an apocalyptic number.

115972730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115972730 is a deficient number, since it is larger than the sum of its proper divisors (94695310).

115972730 is a wasteful number, since it uses less digits than its factorization.

115972730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106513.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 115972730 is about 10769.0635618887. The cubic root of 115972730 is about 487.6616759393.

The spelling of 115972730 in words is "one hundred fifteen million, nine hundred seventy-two thousand, seven hundred thirty".