115510681 has 32 divisors (see below), whose sum is σ = 142442496. Its totient is φ = 92232000.

The previous prime is 115510667. The next prime is 115510711. The reversal of 115510681 is 186015511.

It is a cyclic number.

It is not a de Polignac number, because 115510681 - 2⁵ = 115510649 is a prime.

It is a super-2 number, since 2×115510681² = 26685434850167522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115510651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 314560 + ... + 314926.

It is an arithmetic number, because the mean of its divisors is an integer number (4451328).

Almost surely, 2^115510681 is an apocalyptic number.

115510681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

115510681 is a deficient number, since it is larger than the sum of its proper divisors (26931815).

115510681 is a wasteful number, since it uses less digits than its factorization.

115510681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493.

The product of its (nonzero) digits is 1200, while the sum is 28.

The square root of 115510681 is about 10747.5895437070. The cubic root of 115510681 is about 487.0131801180.

The spelling of 115510681 in words is "one hundred fifteen million, five hundred ten thousand, six hundred eighty-one".