129007699 has 2 divisors, whose sum is σ = 129007700. Its totient is φ = 129007698.

The previous prime is 129007691. The next prime is 129007729. The reversal of 129007699 is 996700921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129007699 - 2³ = 129007691 is a prime.

It is not a weakly prime, because it can be changed into another prime (129007691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64503849 + 64503850.

It is an arithmetic number, because the mean of its divisors is an integer number (64503850).

Almost surely, 2^129007699 is an apocalyptic number.

129007699 is a deficient number, since it is larger than the sum of its proper divisors (1).

129007699 is an equidigital number, since it uses as much as digits as its factorization.

129007699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 129007699 is about 11358.1556161201. The cubic root of 129007699 is about 505.2874865389.

The spelling of 129007699 in words is "one hundred twenty-nine million, seven thousand, six hundred ninety-nine".