122393939 has 2 divisors, whose sum is σ = 122393940. Its totient is φ = 122393938.

The previous prime is 122393911. The next prime is 122393959. The reversal of 122393939 is 939393221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122393939 - 2⁸ = 122393683 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 122393896 and 122393905.

It is not a weakly prime, because it can be changed into another prime (122393959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61196969 + 61196970.

It is an arithmetic number, because the mean of its divisors is an integer number (61196970).

Almost surely, 2^122393939 is an apocalyptic number.

122393939 is a deficient number, since it is larger than the sum of its proper divisors (1).

122393939 is an equidigital number, since it uses as much as digits as its factorization.

122393939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 78732, while the sum is 41.

The square root of 122393939 is about 11063.1794254635. The cubic root of 122393939 is about 496.5008206137.

The spelling of 122393939 in words is "one hundred twenty-two million, three hundred ninety-three thousand, nine hundred thirty-nine".