129988711 has 2 divisors, whose sum is σ = 129988712. Its totient is φ = 129988710.

The previous prime is 129988657. The next prime is 129988723. The reversal of 129988711 is 117889921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129988711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129968711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64994355 + 64994356.

It is an arithmetic number, because the mean of its divisors is an integer number (64994356).

Almost surely, 2^129988711 is an apocalyptic number.

129988711 is a deficient number, since it is larger than the sum of its proper divisors (1).

129988711 is an equidigital number, since it uses as much as digits as its factorization.

129988711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 46.

The square root of 129988711 is about 11401.2591848445. The cubic root of 129988711 is about 506.5650379516.

The spelling of 129988711 in words is "one hundred twenty-nine million, nine hundred eighty-eight thousand, seven hundred eleven".