129273713 has 2 divisors, whose sum is σ = 129273714. Its totient is φ = 129273712.

The previous prime is 129273707. The next prime is 129273719. The reversal of 129273713 is 317372921.

It is a balanced prime because it is at equal distance from previous prime (129273707) and next prime (129273719).

It can be written as a sum of positive squares in only one way, i.e., 87179569 + 42094144 = 9337^2 + 6488^2 .

It is a cyclic number.

It is not a de Polignac number, because 129273713 - 2¹⁴ = 129257329 is a prime.

It is not a weakly prime, because it can be changed into another prime (129273719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64636856 + 64636857.

It is an arithmetic number, because the mean of its divisors is an integer number (64636857).

Almost surely, 2^129273713 is an apocalyptic number.

It is an amenable number.

129273713 is a deficient number, since it is larger than the sum of its proper divisors (1).

129273713 is an equidigital number, since it uses as much as digits as its factorization.

129273713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15876, while the sum is 35.

The square root of 129273713 is about 11369.8598496200. The cubic root of 129273713 is about 505.6345491954.

The spelling of 129273713 in words is "one hundred twenty-nine million, two hundred seventy-three thousand, seven hundred thirteen".