129510379 has 2 divisors, whose sum is σ = 129510380. Its totient is φ = 129510378.

The previous prime is 129510377. The next prime is 129510457. The reversal of 129510379 is 973015921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129510379 - 2¹ = 129510377 is a prime.

Together with 129510377, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (129510373) 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, 64755189 + 64755190.

It is an arithmetic number, because the mean of its divisors is an integer number (64755190).

Almost surely, 2^129510379 is an apocalyptic number.

129510379 is a deficient number, since it is larger than the sum of its proper divisors (1).

129510379 is an equidigital number, since it uses as much as digits as its factorization.

129510379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 129510379 is about 11380.2626946833. The cubic root of 129510379 is about 505.9429221603.

The spelling of 129510379 in words is "one hundred twenty-nine million, five hundred ten thousand, three hundred seventy-nine".