122325809 has 2 divisors, whose sum is σ = 122325810. Its totient is φ = 122325808.

The previous prime is 122325779. The next prime is 122325823. The reversal of 122325809 is 908523221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122323600 + 2209 = 11060^2 + 47^2 .

It is a cyclic number.

It is not a de Polignac number, because 122325809 - 2²⁴ = 105548593 is a prime.

It is not a weakly prime, because it can be changed into another prime (122325839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61162904 + 61162905.

It is an arithmetic number, because the mean of its divisors is an integer number (61162905).

Almost surely, 2^122325809 is an apocalyptic number.

It is an amenable number.

122325809 is a deficient number, since it is larger than the sum of its proper divisors (1).

122325809 is an equidigital number, since it uses as much as digits as its factorization.

122325809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 122325809 is about 11060.0998639253. The cubic root of 122325809 is about 496.4086785801.

The spelling of 122325809 in words is "one hundred twenty-two million, three hundred twenty-five thousand, eight hundred nine".