122131129 has 2 divisors, whose sum is σ = 122131130. Its totient is φ = 122131128.

The previous prime is 122131123. The next prime is 122131157. The reversal of 122131129 is 921131221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84640000 + 37491129 = 9200^2 + 6123^2 .

It is a cyclic number.

It is not a de Polignac number, because 122131129 - 2¹⁷ = 122000057 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122131123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61065564 + 61065565.

It is an arithmetic number, because the mean of its divisors is an integer number (61065565).

Almost surely, 2^122131129 is an apocalyptic number.

It is an amenable number.

122131129 is a deficient number, since it is larger than the sum of its proper divisors (1).

122131129 is an equidigital number, since it uses as much as digits as its factorization.

122131129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 22.

The square root of 122131129 is about 11051.2953539393. The cubic root of 122131129 is about 496.1451960131.

The spelling of 122131129 in words is "one hundred twenty-two million, one hundred thirty-one thousand, one hundred twenty-nine".