122115613 has 2 divisors, whose sum is σ = 122115614. Its totient is φ = 122115612.

The previous prime is 122115599. The next prime is 122115629. The reversal of 122115613 is 316511221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63409369 + 58706244 = 7963^2 + 7662^2 .

It is a cyclic number.

It is not a de Polignac number, because 122115613 - 2²⁵ = 88561181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122115113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61057806 + 61057807.

It is an arithmetic number, because the mean of its divisors is an integer number (61057807).

Almost surely, 2^122115613 is an apocalyptic number.

It is an amenable number.

122115613 is a deficient number, since it is larger than the sum of its proper divisors (1).

122115613 is an equidigital number, since it uses as much as digits as its factorization.

122115613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 22.

The square root of 122115613 is about 11050.5933324867. The cubic root of 122115613 is about 496.1241844033.

Adding to 122115613 its reverse (316511221), we get a palindrome (438626834).

The spelling of 122115613 in words is "one hundred twenty-two million, one hundred fifteen thousand, six hundred thirteen".