122539099 has 2 divisors, whose sum is σ = 122539100. Its totient is φ = 122539098.

The previous prime is 122539093. The next prime is 122539129. The reversal of 122539099 is 990935221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122539099 - 2³ = 122539091 is a prime.

It is not a weakly prime, because it can be changed into another prime (122539091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61269549 + 61269550.

It is an arithmetic number, because the mean of its divisors is an integer number (61269550).

Almost surely, 2^122539099 is an apocalyptic number.

122539099 is a deficient number, since it is larger than the sum of its proper divisors (1).

122539099 is an equidigital number, since it uses as much as digits as its factorization.

122539099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 122539099 is about 11069.7379824457. The cubic root of 122539099 is about 496.6970274570.

The spelling of 122539099 in words is "one hundred twenty-two million, five hundred thirty-nine thousand, ninety-nine".