129410279 has 2 divisors, whose sum is σ = 129410280. Its totient is φ = 129410278.

The previous prime is 129410231. The next prime is 129410287. The reversal of 129410279 is 972014921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129410279 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 (129410179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64705139 + 64705140.

It is an arithmetic number, because the mean of its divisors is an integer number (64705140).

Almost surely, 2^129410279 is an apocalyptic number.

129410279 is a deficient number, since it is larger than the sum of its proper divisors (1).

129410279 is an equidigital number, since it uses as much as digits as its factorization.

129410279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 129410279 is about 11375.8638792841. The cubic root of 129410279 is about 505.8125389419.

The spelling of 129410279 in words is "one hundred twenty-nine million, four hundred ten thousand, two hundred seventy-nine".