122136307 has 2 divisors, whose sum is σ = 122136308. Its totient is φ = 122136306.

The previous prime is 122136299. The next prime is 122136317. The reversal of 122136307 is 703631221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122136307 - 2³ = 122136299 is a prime.

It is not a weakly prime, because it can be changed into another prime (122136317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61068153 + 61068154.

It is an arithmetic number, because the mean of its divisors is an integer number (61068154).

Almost surely, 2^122136307 is an apocalyptic number.

122136307 is a deficient number, since it is larger than the sum of its proper divisors (1).

122136307 is an equidigital number, since it uses as much as digits as its factorization.

122136307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 122136307 is about 11051.5296226360. The cubic root of 122136307 is about 496.1522076122.

Adding to 122136307 its reverse (703631221), we get a palindrome (825767528).

The spelling of 122136307 in words is "one hundred twenty-two million, one hundred thirty-six thousand, three hundred seven".