113919913 has 2 divisors, whose sum is σ = 113919914. Its totient is φ = 113919912.

The previous prime is 113919863. The next prime is 113919919. The reversal of 113919913 is 319919311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95023504 + 18896409 = 9748^2 + 4347^2 .

It is a cyclic number.

It is not a de Polignac number, because 113919913 - 2¹⁷ = 113788841 is a prime.

It is not a weakly prime, because it can be changed into another prime (113919919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56959956 + 56959957.

It is an arithmetic number, because the mean of its divisors is an integer number (56959957).

Almost surely, 2^113919913 is an apocalyptic number.

It is an amenable number.

113919913 is a deficient number, since it is larger than the sum of its proper divisors (1).

113919913 is an equidigital number, since it uses as much as digits as its factorization.

113919913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6561, while the sum is 37.

The square root of 113919913 is about 10673.3271757217. The cubic root of 113919913 is about 484.7671862378.

The spelling of 113919913 in words is "one hundred thirteen million, nine hundred nineteen thousand, nine hundred thirteen".