113567681 has 2 divisors, whose sum is σ = 113567682. Its totient is φ = 113567680.

The previous prime is 113567669. The next prime is 113567719. The reversal of 113567681 is 186765311.

It is an a-pointer prime, because the next prime (113567719) can be obtained adding 113567681 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66178225 + 47389456 = 8135^2 + 6884^2 .

It is a cyclic number.

It is not a de Polignac number, because 113567681 - 2¹⁴ = 113551297 is a prime.

It is a super-2 number, since 2×113567681² = 25795236335435522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (113567621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56783840 + 56783841.

It is an arithmetic number, because the mean of its divisors is an integer number (56783841).

Almost surely, 2^113567681 is an apocalyptic number.

It is an amenable number.

113567681 is a deficient number, since it is larger than the sum of its proper divisors (1).

113567681 is an equidigital number, since it uses as much as digits as its factorization.

113567681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 38.

The square root of 113567681 is about 10656.8138296585. The cubic root of 113567681 is about 484.2670489143.

The spelling of 113567681 in words is "one hundred thirteen million, five hundred sixty-seven thousand, six hundred eighty-one".