122136317 has 2 divisors, whose sum is σ = 122136318. Its totient is φ = 122136316.

The previous prime is 122136307. The next prime is 122136331. The reversal of 122136317 is 713631221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68128516 + 54007801 = 8254^2 + 7349^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122136317 is a prime.

It is a super-4 number, since 4×122136317⁴ (a number of 33 digits) contains 4444 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122136307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61068158 + 61068159.

It is an arithmetic number, because the mean of its divisors is an integer number (61068159).

Almost surely, 2^122136317 is an apocalyptic number.

It is an amenable number.

122136317 is a deficient number, since it is larger than the sum of its proper divisors (1).

122136317 is an equidigital number, since it uses as much as digits as its factorization.

122136317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 26.

The square root of 122136317 is about 11051.5300750620. The cubic root of 122136317 is about 496.1522211531.

Adding to 122136317 its reverse (713631221), we get a palindrome (835767538).

The spelling of 122136317 in words is "one hundred twenty-two million, one hundred thirty-six thousand, three hundred seventeen".