129680293 has 8 divisors (see below), whose sum is σ = 131702976. Its totient is φ = 127663200.

The previous prime is 129680261. The next prime is 129680323. The reversal of 129680293 is 392086921.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129680293 - 2⁵ = 129680261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129680203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83938 + ... + 85468.

It is an arithmetic number, because the mean of its divisors is an integer number (16462872).

Almost surely, 2^129680293 is an apocalyptic number.

It is an amenable number.

129680293 is a deficient number, since it is larger than the sum of its proper divisors (2022683).

129680293 is a wasteful number, since it uses less digits than its factorization.

129680293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 129680293 is about 11387.7255411254. The cubic root of 129680293 is about 506.1640864623.

The spelling of 129680293 in words is "one hundred twenty-nine million, six hundred eighty thousand, two hundred ninety-three".