122908579 has 4 divisors (see below), whose sum is σ = 123376176. Its totient is φ = 122440984.

The previous prime is 122908559. The next prime is 122908609. The reversal of 122908579 is 975809221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122908579 - 2⁵ = 122908547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122908559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233404 + ... + 233929.

It is an arithmetic number, because the mean of its divisors is an integer number (30844044).

Almost surely, 2^122908579 is an apocalyptic number.

122908579 is a deficient number, since it is larger than the sum of its proper divisors (467597).

122908579 is an equidigital number, since it uses as much as digits as its factorization.

122908579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467596.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 122908579 is about 11086.4141632901. The cubic root of 122908579 is about 497.1957403251.

The spelling of 122908579 in words is "one hundred twenty-two million, nine hundred eight thousand, five hundred seventy-nine".