122919793 has 2 divisors, whose sum is σ = 122919794. Its totient is φ = 122919792.

The previous prime is 122919761. The next prime is 122919803. The reversal of 122919793 is 397919221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83393424 + 39526369 = 9132^2 + 6287^2 .

It is a cyclic number.

It is not a de Polignac number, because 122919793 - 2⁵ = 122919761 is a prime.

It is a super-2 number, since 2×122919793² = 30218551022325698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122919193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61459896 + 61459897.

It is an arithmetic number, because the mean of its divisors is an integer number (61459897).

Almost surely, 2^122919793 is an apocalyptic number.

It is an amenable number.

122919793 is a deficient number, since it is larger than the sum of its proper divisors (1).

122919793 is an equidigital number, since it uses as much as digits as its factorization.

122919793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 43.

The square root of 122919793 is about 11086.9199059071. The cubic root of 122919793 is about 497.2108610040.

The spelling of 122919793 in words is "one hundred twenty-two million, nine hundred nineteen thousand, seven hundred ninety-three".