113122129 has 2 divisors, whose sum is σ = 113122130. Its totient is φ = 113122128.

The previous prime is 113122123. The next prime is 113122169. The reversal of 113122129 is 921221311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112360000 + 762129 = 10600^2 + 873^2 .

It is a cyclic number.

It is not a de Polignac number, because 113122129 - 2⁷ = 113122001 is a prime.

It is not a weakly prime, because it can be changed into another prime (113122123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56561064 + 56561065.

It is an arithmetic number, because the mean of its divisors is an integer number (56561065).

Almost surely, 2^113122129 is an apocalyptic number.

It is an amenable number.

113122129 is a deficient number, since it is larger than the sum of its proper divisors (1).

113122129 is an equidigital number, since it uses as much as digits as its factorization.

113122129 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 113122129 is about 10635.8887263830. Note that the first 3 decimals coincide. The cubic root of 113122129 is about 483.6329220995.

The spelling of 113122129 in words is "one hundred thirteen million, one hundred twenty-two thousand, one hundred twenty-nine".