122494717 has 2 divisors, whose sum is σ = 122494718. Its totient is φ = 122494716.

The previous prime is 122494709. The next prime is 122494721. The reversal of 122494717 is 717494221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122345721 + 148996 = 11061^2 + 386^2 .

It is a cyclic number.

It is not a de Polignac number, because 122494717 - 2³ = 122494709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122494727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61247358 + 61247359.

It is an arithmetic number, because the mean of its divisors is an integer number (61247359).

Almost surely, 2^122494717 is an apocalyptic number.

It is an amenable number.

122494717 is a deficient number, since it is larger than the sum of its proper divisors (1).

122494717 is an equidigital number, since it uses as much as digits as its factorization.

122494717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 37.

The square root of 122494717 is about 11067.7331464036. The cubic root of 122494717 is about 496.6370545733.

The spelling of 122494717 in words is "one hundred twenty-two million, four hundred ninety-four thousand, seven hundred seventeen".