115853681 has 2 divisors, whose sum is σ = 115853682. Its totient is φ = 115853680.

The previous prime is 115853671. The next prime is 115853711. The reversal of 115853681 is 186358511.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60202081 + 55651600 = 7759^2 + 7460^2 .

It is a cyclic number.

It is not a de Polignac number, because 115853681 - 2¹⁰ = 115852657 is a prime.

It is a super-2 number, since 2×115853681² = 26844150802499522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115853651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57926840 + 57926841.

It is an arithmetic number, because the mean of its divisors is an integer number (57926841).

Almost surely, 2^115853681 is an apocalyptic number.

It is an amenable number.

115853681 is a deficient number, since it is larger than the sum of its proper divisors (1).

115853681 is an equidigital number, since it uses as much as digits as its factorization.

115853681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 38.

The square root of 115853681 is about 10763.5347818456. The cubic root of 115853681 is about 487.4947530446.

The spelling of 115853681 in words is "one hundred fifteen million, eight hundred fifty-three thousand, six hundred eighty-one".