204442163 has 4 divisors (see below), whose sum is σ = 205359168. Its totient is φ = 203525160.

The previous prime is 204442159. The next prime is 204442207. The reversal of 204442163 is 361244402.

204442163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 204442163 - 2² = 204442159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204442963) 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, 458168 + ... + 458613.

It is an arithmetic number, because the mean of its divisors is an integer number (51339792).

Almost surely, 2^204442163 is an apocalyptic number.

204442163 is a deficient number, since it is larger than the sum of its proper divisors (917005).

204442163 is an equidigital number, since it uses as much as digits as its factorization.

204442163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917004.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 204442163 is about 14298.3272797905. The cubic root of 204442163 is about 589.1015368356.

Adding to 204442163 its reverse (361244402), we get a palindrome (565686565).

The spelling of 204442163 in words is "two hundred four million, four hundred forty-two thousand, one hundred sixty-three".