129096529 has 2 divisors, whose sum is σ = 129096530. Its totient is φ = 129096528.

The previous prime is 129096523. The next prime is 129096551. The reversal of 129096529 is 925690921.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75220929 + 53875600 = 8673^2 + 7340^2 .

It is a cyclic number.

It is not a de Polignac number, because 129096529 - 2⁹ = 129096017 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (129096523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64548264 + 64548265.

It is an arithmetic number, because the mean of its divisors is an integer number (64548265).

Almost surely, 2^129096529 is an apocalyptic number.

It is an amenable number.

129096529 is a deficient number, since it is larger than the sum of its proper divisors (1).

129096529 is an equidigital number, since it uses as much as digits as its factorization.

129096529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 129096529 is about 11362.0653492224. The cubic root of 129096529 is about 505.4034341134.

The spelling of 129096529 in words is "one hundred twenty-nine million, ninety-six thousand, five hundred twenty-nine".