113906681 has 16 divisors (see below), whose sum is σ = 138940416. Its totient is φ = 91155456.

The previous prime is 113906677. The next prime is 113906687. The reversal of 113906681 is 186609311.

It is not a de Polignac number, because 113906681 - 2² = 113906677 is a prime.

It is a super-2 number, since 2×113906681² = 25949463952871522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113906687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11345 + ... + 18881.

It is an arithmetic number, because the mean of its divisors is an integer number (8683776).

Almost surely, 2^113906681 is an apocalyptic number.

It is an amenable number.

113906681 is a deficient number, since it is larger than the sum of its proper divisors (25033735).

113906681 is a wasteful number, since it uses less digits than its factorization.

113906681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7688.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 113906681 is about 10672.7072947776. The cubic root of 113906681 is about 484.7484166548.

The spelling of 113906681 in words is "one hundred thirteen million, nine hundred six thousand, six hundred eighty-one".