129431359 has 2 divisors, whose sum is σ = 129431360. Its totient is φ = 129431358.

The previous prime is 129431339. The next prime is 129431369. The reversal of 129431359 is 953134921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129431359 - 2²⁵ = 95876927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129431329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64715679 + 64715680.

It is an arithmetic number, because the mean of its divisors is an integer number (64715680).

Almost surely, 2^129431359 is an apocalyptic number.

129431359 is a deficient number, since it is larger than the sum of its proper divisors (1).

129431359 is an equidigital number, since it uses as much as digits as its factorization.

129431359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 37.

The square root of 129431359 is about 11376.7903645976. The cubic root of 129431359 is about 505.8400018542.

The spelling of 129431359 in words is "one hundred twenty-nine million, four hundred thirty-one thousand, three hundred fifty-nine".