122605317 has 6 divisors (see below), whose sum is σ = 177096582. Its totient is φ = 81736872.

The previous prime is 122605313. The next prime is 122605333. The reversal of 122605317 is 713506221.

It is a happy number.

122605317 is a `hidden beast` number, since 1 + 22 + 605 + 31 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 90897156 + 31708161 = 9534^2 + 5631^2 .

It is not a de Polignac number, because 122605317 - 2² = 122605313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122605313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6811398 + ... + 6811415.

It is an arithmetic number, because the mean of its divisors is an integer number (29516097).

Almost surely, 2^122605317 is an apocalyptic number.

It is an amenable number.

122605317 is a deficient number, since it is larger than the sum of its proper divisors (54491265).

122605317 is a wasteful number, since it uses less digits than its factorization.

122605317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13622819 (or 13622816 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 122605317 is about 11072.7285255261. The cubic root of 122605317 is about 496.7864801606.

The spelling of 122605317 in words is "one hundred twenty-two million, six hundred five thousand, three hundred seventeen".