115942129 has 2 divisors, whose sum is σ = 115942130. Its totient is φ = 115942128.

The previous prime is 115942081. The next prime is 115942133. The reversal of 115942129 is 921249511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112784400 + 3157729 = 10620^2 + 1777^2 .

It is a cyclic number.

It is not a de Polignac number, because 115942129 - 2¹⁵ = 115909361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115942094 and 115942103.

It is not a weakly prime, because it can be changed into another prime (115942529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57971064 + 57971065.

It is an arithmetic number, because the mean of its divisors is an integer number (57971065).

Almost surely, 2^115942129 is an apocalyptic number.

It is an amenable number.

115942129 is a deficient number, since it is larger than the sum of its proper divisors (1).

115942129 is an equidigital number, since it uses as much as digits as its factorization.

115942129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 34.

The square root of 115942129 is about 10767.6426853792. The cubic root of 115942129 is about 487.6187800859.

The spelling of 115942129 in words is "one hundred fifteen million, nine hundred forty-two thousand, one hundred twenty-nine".