129914957 has 2 divisors, whose sum is σ = 129914958. Its totient is φ = 129914956.

The previous prime is 129914921. The next prime is 129915001. The reversal of 129914957 is 759419921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89605156 + 40309801 = 9466^2 + 6349^2 .

It is a cyclic number.

It is not a de Polignac number, because 129914957 - 2¹⁰ = 129913933 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129914657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64957478 + 64957479.

It is an arithmetic number, because the mean of its divisors is an integer number (64957479).

Almost surely, 2^129914957 is an apocalyptic number.

It is an amenable number.

129914957 is a deficient number, since it is larger than the sum of its proper divisors (1).

129914957 is an equidigital number, since it uses as much as digits as its factorization.

129914957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 47.

The square root of 129914957 is about 11398.0242586161. The cubic root of 129914957 is about 506.4692135634.

The spelling of 129914957 in words is "one hundred twenty-nine million, nine hundred fourteen thousand, nine hundred fifty-seven".