204115263 has 12 divisors (see below), whose sum is σ = 299144664. Its totient is φ = 123706000.

The previous prime is 204115259. The next prime is 204115291. The reversal of 204115263 is 362511402.

It is not a de Polignac number, because 204115263 - 2² = 204115259 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204115213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 280788 + ... + 281513.

It is an arithmetic number, because the mean of its divisors is an integer number (24928722).

Almost surely, 2^204115263 is an apocalyptic number.

204115263 is a deficient number, since it is larger than the sum of its proper divisors (95029401).

204115263 is a wasteful number, since it uses less digits than its factorization.

204115263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562326 (or 562315 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 204115263 is about 14286.8912993695. The cubic root of 204115263 is about 588.7873811129.

Adding to 204115263 its reverse (362511402), we get a palindrome (566626665).

The spelling of 204115263 in words is "two hundred four million, one hundred fifteen thousand, two hundred sixty-three".