204325345 has 24 divisors (see below), whose sum is σ = 292192488. Its totient is φ = 136684800.

The previous prime is 204325327. The next prime is 204325351. The reversal of 204325345 is 543523402.

It can be written as a sum of positive squares in 4 ways, for example, as 2202256 + 202123089 = 1484^2 + 14217^2 .

It is not a de Polignac number, because 204325345 - 2⁵ = 204325313 is a prime.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 126 + ... + 20215.

It is an arithmetic number, because the mean of its divisors is an integer number (12174687).

Almost surely, 2^204325345 is an apocalyptic number.

It is an amenable number.

204325345 is a deficient number, since it is larger than the sum of its proper divisors (87867143).

204325345 is a wasteful number, since it uses less digits than its factorization.

204325345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20401 (or 20394 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 204325345 is about 14294.2416727856. The cubic root of 204325345 is about 588.9893114937.

Adding to 204325345 its reverse (543523402), we get a palindrome (747848747).

The spelling of 204325345 in words is "two hundred four million, three hundred twenty-five thousand, three hundred forty-five".