129358079 has 2 divisors, whose sum is σ = 129358080. Its totient is φ = 129358078.

The previous prime is 129358043. The next prime is 129358081. The reversal of 129358079 is 970853921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129358079 is a prime.

Together with 129358081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129378079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64679039 + 64679040.

It is an arithmetic number, because the mean of its divisors is an integer number (64679040).

Almost surely, 2^129358079 is an apocalyptic number.

129358079 is a deficient number, since it is larger than the sum of its proper divisors (1).

129358079 is an equidigital number, since it uses as much as digits as its factorization.

129358079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 129358079 is about 11373.5693166218. The cubic root of 129358079 is about 505.7445202197.

The spelling of 129358079 in words is "one hundred twenty-nine million, three hundred fifty-eight thousand, seventy-nine".