113379809 has 2 divisors, whose sum is σ = 113379810. Its totient is φ = 113379808.

The previous prime is 113379781. The next prime is 113379899. The reversal of 113379809 is 908973311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87011584 + 26368225 = 9328^2 + 5135^2 .

It is a cyclic number.

It is not a de Polignac number, because 113379809 - 2¹⁶ = 113314273 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (113379899) 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, 56689904 + 56689905.

It is an arithmetic number, because the mean of its divisors is an integer number (56689905).

Almost surely, 2^113379809 is an apocalyptic number.

It is an amenable number.

113379809 is a deficient number, since it is larger than the sum of its proper divisors (1).

113379809 is an equidigital number, since it uses as much as digits as its factorization.

113379809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 113379809 is about 10647.9955390674. The cubic root of 113379809 is about 483.9998648202. Note that the first 3 decimals are identical.

The spelling of 113379809 in words is "one hundred thirteen million, three hundred seventy-nine thousand, eight hundred nine".