129892713 has 4 divisors (see below), whose sum is σ = 173190288. Its totient is φ = 86595140.

The previous prime is 129892703. The next prime is 129892787. The reversal of 129892713 is 317298921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 129892713 - 2⁶ = 129892649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129892703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21648783 + ... + 21648788.

It is an arithmetic number, because the mean of its divisors is an integer number (43297572).

Almost surely, 2^129892713 is an apocalyptic number.

It is an amenable number.

129892713 is a deficient number, since it is larger than the sum of its proper divisors (43297575).

129892713 is an equidigital number, since it uses as much as digits as its factorization.

129892713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43297574.

The product of its digits is 54432, while the sum is 42.

The square root of 129892713 is about 11397.0484336955. The cubic root of 129892713 is about 506.4403060778.

The spelling of 129892713 in words is "one hundred twenty-nine million, eight hundred ninety-two thousand, seven hundred thirteen".