204230243 has 4 divisors (see below), whose sum is σ = 233406000. Its totient is φ = 175054488.

The previous prime is 204230239. The next prime is 204230261. The reversal of 204230243 is 342032402.

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

It is not a de Polignac number, because 204230243 - 2² = 204230239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204230203) 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 3 ways as a sum of consecutive naturals, for example, 14587868 + ... + 14587881.

It is an arithmetic number, because the mean of its divisors is an integer number (58351500).

Almost surely, 2^204230243 is an apocalyptic number.

204230243 is a deficient number, since it is larger than the sum of its proper divisors (29175757).

204230243 is an equidigital number, since it uses as much as digits as its factorization.

204230243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29175756.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 204230243 is about 14290.9147013059. The cubic root of 204230243 is about 588.8979168045.

Adding to 204230243 its reverse (342032402), we get a palindrome (546262645).

The spelling of 204230243 in words is "two hundred four million, two hundred thirty thousand, two hundred forty-three".