113426309 has 2 divisors, whose sum is σ = 113426310. Its totient is φ = 113426308.

The previous prime is 113426281. The next prime is 113426323. The reversal of 113426309 is 903624311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99062209 + 14364100 = 9953^2 + 3790^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113426309 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113426359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56713154 + 56713155.

It is an arithmetic number, because the mean of its divisors is an integer number (56713155).

Almost surely, 2^113426309 is an apocalyptic number.

It is an amenable number.

113426309 is a deficient number, since it is larger than the sum of its proper divisors (1).

113426309 is an equidigital number, since it uses as much as digits as its factorization.

113426309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 113426309 is about 10650.1788247898. The cubic root of 113426309 is about 484.0660227421.

The spelling of 113426309 in words is "one hundred thirteen million, four hundred twenty-six thousand, three hundred nine".