113655961 has 2 divisors, whose sum is σ = 113655962. Its totient is φ = 113655960.

The previous prime is 113655953. The next prime is 113655979. The reversal of 113655961 is 169556311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113550336 + 105625 = 10656^2 + 325^2 .

It is a cyclic number.

It is not a de Polignac number, because 113655961 - 2³ = 113655953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113655961.

It is not a weakly prime, because it can be changed into another prime (113652961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56827980 + 56827981.

It is an arithmetic number, because the mean of its divisors is an integer number (56827981).

Almost surely, 2^113655961 is an apocalyptic number.

It is an amenable number.

113655961 is a deficient number, since it is larger than the sum of its proper divisors (1).

113655961 is an equidigital number, since it uses as much as digits as its factorization.

113655961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24300, while the sum is 37.

The square root of 113655961 is about 10660.9549759860. The cubic root of 113655961 is about 484.3924954680.

The spelling of 113655961 in words is "one hundred thirteen million, six hundred fifty-five thousand, nine hundred sixty-one".