129707099 has 2 divisors, whose sum is σ = 129707100. Its totient is φ = 129707098.

The previous prime is 129707077. The next prime is 129707113. The reversal of 129707099 is 990707921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129707099 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (129707009) 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, 64853549 + 64853550.

It is an arithmetic number, because the mean of its divisors is an integer number (64853550).

Almost surely, 2^129707099 is an apocalyptic number.

129707099 is a deficient number, since it is larger than the sum of its proper divisors (1).

129707099 is an equidigital number, since it uses as much as digits as its factorization.

129707099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71442, while the sum is 44.

The square root of 129707099 is about 11388.9024493144. The cubic root of 129707099 is about 506.1989601747.

The spelling of 129707099 in words is "one hundred twenty-nine million, seven hundred seven thousand, ninety-nine".