115313681 has 4 divisors (see below), whose sum is σ = 131787072. Its totient is φ = 98840292.

The previous prime is 115313677. The next prime is 115313683. The reversal of 115313681 is 186313511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 115313681 - 2² = 115313677 is a prime.

It is a super-2 number, since 2×115313681² = 26594490051539522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (115313683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8236685 + ... + 8236698.

It is an arithmetic number, because the mean of its divisors is an integer number (32946768).

Almost surely, 2^115313681 is an apocalyptic number.

It is an amenable number.

115313681 is a deficient number, since it is larger than the sum of its proper divisors (16473391).

115313681 is an equidigital number, since it uses as much as digits as its factorization.

115313681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16473390.

The product of its digits is 2160, while the sum is 29.

The square root of 115313681 is about 10738.4207870618. The cubic root of 115313681 is about 486.7361604541.

The spelling of 115313681 in words is "one hundred fifteen million, three hundred thirteen thousand, six hundred eighty-one".