115612129 has 2 divisors, whose sum is σ = 115612130. Its totient is φ = 115612128.

The previous prime is 115612117. The next prime is 115612153. The reversal of 115612129 is 921216511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110670400 + 4941729 = 10520^2 + 2223^2 .

It is a cyclic number.

It is not a de Polignac number, because 115612129 - 2⁵ = 115612097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115612097 and 115612106.

It is not a weakly prime, because it can be changed into another prime (115612829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57806064 + 57806065.

It is an arithmetic number, because the mean of its divisors is an integer number (57806065).

Almost surely, 2^115612129 is an apocalyptic number.

It is an amenable number.

115612129 is a deficient number, since it is larger than the sum of its proper divisors (1).

115612129 is an equidigital number, since it uses as much as digits as its factorization.

115612129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 28.

The square root of 115612129 is about 10752.3080778036. The cubic root of 115612129 is about 487.1557125541.

The spelling of 115612129 in words is "one hundred fifteen million, six hundred twelve thousand, one hundred twenty-nine".