204223241 has 4 divisors (see below), whose sum is σ = 204542484. Its totient is φ = 203904000.

The previous prime is 204223237. The next prime is 204223247. The reversal of 204223241 is 142322402.

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

It can be written as a sum of positive squares in 2 ways, for example, as 131905225 + 72318016 = 11485^2 + 8504^2 .

It is a cyclic number.

It is not a de Polignac number, because 204223241 - 2² = 204223237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204223247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158660 + ... + 159941.

It is an arithmetic number, because the mean of its divisors is an integer number (51135621).

Almost surely, 2^204223241 is an apocalyptic number.

It is an amenable number.

204223241 is a deficient number, since it is larger than the sum of its proper divisors (319243).

204223241 is an equidigital number, since it uses as much as digits as its factorization.

204223241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319242.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 204223241 is about 14290.6697183862. The cubic root of 204223241 is about 588.8911866385.

Adding to 204223241 its reverse (142322402), we get a palindrome (346545643).

The spelling of 204223241 in words is "two hundred four million, two hundred twenty-three thousand, two hundred forty-one".