113860561 has 2 divisors, whose sum is σ = 113860562. Its totient is φ = 113860560.

The previous prime is 113860541. The next prime is 113860609. The reversal of 113860561 is 165068311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113742225 + 118336 = 10665^2 + 344^2 .

It is a cyclic number.

It is not a de Polignac number, because 113860561 - 2⁵ = 113860529 is a prime.

It is not a weakly prime, because it can be changed into another prime (113860531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56930280 + 56930281.

It is an arithmetic number, because the mean of its divisors is an integer number (56930281).

Almost surely, 2^113860561 is an apocalyptic number.

It is an amenable number.

113860561 is a deficient number, since it is larger than the sum of its proper divisors (1).

113860561 is an equidigital number, since it uses as much as digits as its factorization.

113860561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 113860561 is about 10670.5464246214. The cubic root of 113860561 is about 484.6829841013.

The spelling of 113860561 in words is "one hundred thirteen million, eight hundred sixty thousand, five hundred sixty-one".