122313137 has 2 divisors, whose sum is σ = 122313138. Its totient is φ = 122313136.

The previous prime is 122313133. The next prime is 122313167. The reversal of 122313137 is 731313221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121793296 + 519841 = 11036^2 + 721^2 .

It is a cyclic number.

It is not a de Polignac number, because 122313137 - 2² = 122313133 is a prime.

It is not a weakly prime, because it can be changed into another prime (122313131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61156568 + 61156569.

It is an arithmetic number, because the mean of its divisors is an integer number (61156569).

Almost surely, 2^122313137 is an apocalyptic number.

It is an amenable number.

122313137 is a deficient number, since it is larger than the sum of its proper divisors (1).

122313137 is an equidigital number, since it uses as much as digits as its factorization.

122313137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 23.

The square root of 122313137 is about 11059.5269790349. The cubic root of 122313137 is about 496.3915366320.

Adding to 122313137 its reverse (731313221), we get a palindrome (853626358).

The spelling of 122313137 in words is "one hundred twenty-two million, three hundred thirteen thousand, one hundred thirty-seven".