115691536 has 15 divisors (see below), whose sum is σ = 224235741. Its totient is φ = 57824256.

The previous prime is 115691533. The next prime is 115691549. The reversal of 115691536 is 635196511.

The square root of 115691536 is 10756.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4177936 + 111513600 = 2044^2 + 10560^2 .

It is a super-3 number, since 3×115691536³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115691495 and 115691504.

It is not an unprimeable number, because it can be changed into a prime (115691533) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 41680 + ... + 44368.

Almost surely, 2^115691536 is an apocalyptic number.

115691536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

115691536 is the 10756-th square number.

It is an amenable number.

115691536 is a deficient number, since it is larger than the sum of its proper divisors (108544205).

115691536 is an frugal number, since it uses more digits than its factorization.

115691536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5386 (or 2691 counting only the distinct ones).

The product of its digits is 24300, while the sum is 37.

The cubic root of 115691536 is about 487.2672196567.

The spelling of 115691536 in words is "one hundred fifteen million, six hundred ninety-one thousand, five hundred thirty-six".