204235243 has 2 divisors, whose sum is σ = 204235244. Its totient is φ = 204235242.

The previous prime is 204235189. The next prime is 204235247. The reversal of 204235243 is 342532402.

204235243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204235243 is a prime.

It is not a weakly prime, because it can be changed into another prime (204235247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102117621 + 102117622.

It is an arithmetic number, because the mean of its divisors is an integer number (102117622).

Almost surely, 2^204235243 is an apocalyptic number.

204235243 is a deficient number, since it is larger than the sum of its proper divisors (1).

204235243 is an equidigital number, since it uses as much as digits as its factorization.

204235243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 204235243 is about 14291.0896365533. The cubic root of 204235243 is about 588.9027225987.

Adding to 204235243 its reverse (342532402), we get a palindrome (546767645).

The spelling of 204235243 in words is "two hundred four million, two hundred thirty-five thousand, two hundred forty-three".