113909969 has 2 divisors, whose sum is σ = 113909970. Its totient is φ = 113909968.

The previous prime is 113909927. The next prime is 113909981. The reversal of 113909969 is 969909311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95804944 + 18105025 = 9788^2 + 4255^2 .

It is a cyclic number.

It is not a de Polignac number, because 113909969 - 2⁸ = 113909713 is a prime.

It is a super-2 number, since 2×113909969² = 25950962075161922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (113903969) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56954984 + 56954985.

It is an arithmetic number, because the mean of its divisors is an integer number (56954985).

Almost surely, 2^113909969 is an apocalyptic number.

It is an amenable number.

113909969 is a deficient number, since it is larger than the sum of its proper divisors (1).

113909969 is an equidigital number, since it uses as much as digits as its factorization.

113909969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 118098, while the sum is 47.

The square root of 113909969 is about 10672.8613314331. The cubic root of 113909969 is about 484.7530808163.

The spelling of 113909969 in words is "one hundred thirteen million, nine hundred nine thousand, nine hundred sixty-nine".