129116593 has 4 divisors (see below), whose sum is σ = 129142260. Its totient is φ = 129090928.

The previous prime is 129116563. The next prime is 129116621. The reversal of 129116593 is 395611921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 395611921 = 163 ⋅2427067.

It can be written as a sum of positive squares in 2 ways, for example, as 45064369 + 84052224 = 6713^2 + 9168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129116593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129116563) 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, 2530 + ... + 16267.

It is an arithmetic number, because the mean of its divisors is an integer number (32285565).

Almost surely, 2^129116593 is an apocalyptic number.

It is an amenable number.

129116593 is a deficient number, since it is larger than the sum of its proper divisors (25667).

129116593 is an equidigital number, since it uses as much as digits as its factorization.

129116593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25666.

The product of its digits is 14580, while the sum is 37.

The square root of 129116593 is about 11362.9482529843. The cubic root of 129116593 is about 505.4296157861.

The spelling of 129116593 in words is "one hundred twenty-nine million, one hundred sixteen thousand, five hundred ninety-three".