129620713 has 2 divisors, whose sum is σ = 129620714. Its totient is φ = 129620712.

The previous prime is 129620707. The next prime is 129620719. The reversal of 129620713 is 317026921.

It is a balanced prime because it is at equal distance from previous prime (129620707) and next prime (129620719).

It can be written as a sum of positive squares in only one way, i.e., 99940009 + 29680704 = 9997^2 + 5448^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129620713 is a prime.

It is not a weakly prime, because it can be changed into another prime (129620719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64810356 + 64810357.

It is an arithmetic number, because the mean of its divisors is an integer number (64810357).

Almost surely, 2^129620713 is an apocalyptic number.

It is an amenable number.

129620713 is a deficient number, since it is larger than the sum of its proper divisors (1).

129620713 is an equidigital number, since it uses as much as digits as its factorization.

129620713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 129620713 is about 11385.1092660545. The cubic root of 129620713 is about 506.0865576535.

The spelling of 129620713 in words is "one hundred twenty-nine million, six hundred twenty thousand, seven hundred thirteen".