129398345 has 8 divisors (see below), whose sum is σ = 162029376. Its totient is φ = 99017776.

The previous prime is 129398329. The next prime is 129398359. The reversal of 129398345 is 543893921.

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 129398345 - 2⁴ = 129398329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 129398296 and 129398305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562487 + ... + 562716.

It is an arithmetic number, because the mean of its divisors is an integer number (20253672).

Almost surely, 2^129398345 is an apocalyptic number.

It is an amenable number.

129398345 is a deficient number, since it is larger than the sum of its proper divisors (32631031).

129398345 is a wasteful number, since it uses less digits than its factorization.

129398345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125231.

The product of its digits is 233280, while the sum is 44.

The square root of 129398345 is about 11375.3393355979. The cubic root of 129398345 is about 505.7969900678.

The spelling of 129398345 in words is "one hundred twenty-nine million, three hundred ninety-eight thousand, three hundred forty-five".