204108317 has 36 divisors (see below), whose sum is σ = 257312160. Its totient is φ = 158529312.

The previous prime is 204108313. The next prime is 204108343. The reversal of 204108317 is 713801402.

It is not a de Polignac number, because 204108317 - 2² = 204108313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204108313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3459434 + ... + 3459492.

It is an arithmetic number, because the mean of its divisors is an integer number (7147560).

Almost surely, 2^204108317 is an apocalyptic number.

It is an amenable number.

204108317 is a deficient number, since it is larger than the sum of its proper divisors (53203843).

204108317 is an equidigital number, since it uses as much as digits as its factorization.

204108317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 204108317 is about 14286.6482073298. The cubic root of 204108317 is about 588.7807022664.

Adding to 204108317 its reverse (713801402), we get a palindrome (917909719).

The spelling of 204108317 in words is "two hundred four million, one hundred eight thousand, three hundred seventeen".