122693717 has 2 divisors, whose sum is σ = 122693718. Its totient is φ = 122693716.

The previous prime is 122693713. The next prime is 122693719. The reversal of 122693717 is 717396221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117635716 + 5058001 = 10846^2 + 2249^2 .

It is an emirp because it is prime and its reverse (717396221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122693717 - 2² = 122693713 is a prime.

Together with 122693719, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122693713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61346858 + 61346859.

It is an arithmetic number, because the mean of its divisors is an integer number (61346859).

Almost surely, 2^122693717 is an apocalyptic number.

It is an amenable number.

122693717 is a deficient number, since it is larger than the sum of its proper divisors (1).

122693717 is an equidigital number, since it uses as much as digits as its factorization.

122693717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 38.

The square root of 122693717 is about 11076.7195956204. The cubic root of 122693717 is about 496.9058479431.

The spelling of 122693717 in words is "one hundred twenty-two million, six hundred ninety-three thousand, seven hundred seventeen".