129596591 has 2 divisors, whose sum is σ = 129596592. Its totient is φ = 129596590.

The previous prime is 129596569. The next prime is 129596603. The reversal of 129596591 is 195695921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129596591 - 2⁶ = 129596527 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129596791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64798295 + 64798296.

It is an arithmetic number, because the mean of its divisors is an integer number (64798296).

Almost surely, 2^129596591 is an apocalyptic number.

129596591 is a deficient number, since it is larger than the sum of its proper divisors (1).

129596591 is an equidigital number, since it uses as much as digits as its factorization.

129596591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 218700, while the sum is 47.

The square root of 129596591 is about 11384.0498505585. The cubic root of 129596591 is about 506.0551620095.

The spelling of 129596591 in words is "one hundred twenty-nine million, five hundred ninety-six thousand, five hundred ninety-one".