113563081 has 2 divisors, whose sum is σ = 113563082. Its totient is φ = 113563080.

The previous prime is 113563069. The next prime is 113563091. The reversal of 113563081 is 180365311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85377600 + 28185481 = 9240^2 + 5309^2 .

It is a cyclic number.

It is not a de Polignac number, because 113563081 - 2⁵ = 113563049 is a prime.

It is a super-2 number, since 2×113563081² = 25793146732425122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (113563091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56781540 + 56781541.

It is an arithmetic number, because the mean of its divisors is an integer number (56781541).

Almost surely, 2^113563081 is an apocalyptic number.

It is an amenable number.

113563081 is a deficient number, since it is larger than the sum of its proper divisors (1).

113563081 is an equidigital number, since it uses as much as digits as its factorization.

113563081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 113563081 is about 10656.5980031153. The cubic root of 113563081 is about 484.2605104975.

The spelling of 113563081 in words is "one hundred thirteen million, five hundred sixty-three thousand, eighty-one".