113810681 has 2 divisors, whose sum is σ = 113810682. Its totient is φ = 113810680.

The previous prime is 113810659. The next prime is 113810707. The reversal of 113810681 is 186018311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67502656 + 46308025 = 8216^2 + 6805^2 .

It is an emirp because it is prime and its reverse (186018311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113810681 - 2²⁶ = 46701817 is a prime.

It is a super-2 number, since 2×113810681² = 25905742219367522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (113810621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56905340 + 56905341.

It is an arithmetic number, because the mean of its divisors is an integer number (56905341).

Almost surely, 2^113810681 is an apocalyptic number.

It is an amenable number.

113810681 is a deficient number, since it is larger than the sum of its proper divisors (1).

113810681 is an equidigital number, since it uses as much as digits as its factorization.

113810681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 113810681 is about 10668.2088937178. The cubic root of 113810681 is about 484.6121971720.

Adding to 113810681 its reverse (186018311), we get a palindrome (299828992).

The spelling of 113810681 in words is "one hundred thirteen million, eight hundred ten thousand, six hundred eighty-one".