113799209 has 2 divisors, whose sum is σ = 113799210. Its totient is φ = 113799208.

The previous prime is 113799167. The next prime is 113799269. The reversal of 113799209 is 902997311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111239209 + 2560000 = 10547^2 + 1600^2 .

It is a cyclic number.

It is not a de Polignac number, because 113799209 - 2¹² = 113795113 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (113799269) 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, 56899604 + 56899605.

It is an arithmetic number, because the mean of its divisors is an integer number (56899605).

Almost surely, 2^113799209 is an apocalyptic number.

It is an amenable number.

113799209 is a deficient number, since it is larger than the sum of its proper divisors (1).

113799209 is an equidigital number, since it uses as much as digits as its factorization.

113799209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 113799209 is about 10667.6712079066. The cubic root of 113799209 is about 484.5959138206.

The spelling of 113799209 in words is "one hundred thirteen million, seven hundred ninety-nine thousand, two hundred nine".