204030433 has 2 divisors, whose sum is σ = 204030434. Its totient is φ = 204030432.

The previous prime is 204030419. The next prime is 204030461. The reversal of 204030433 is 334030402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172580769 + 31449664 = 13137^2 + 5608^2 .

It is a cyclic number.

It is not a de Polignac number, because 204030433 - 2⁹ = 204029921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204030433.

It is not a weakly prime, because it can be changed into another prime (204030133) 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 as a sum of consecutive naturals, namely, 102015216 + 102015217.

It is an arithmetic number, because the mean of its divisors is an integer number (102015217).

Almost surely, 2^204030433 is an apocalyptic number.

It is an amenable number.

204030433 is a deficient number, since it is larger than the sum of its proper divisors (1).

204030433 is an equidigital number, since it uses as much as digits as its factorization.

204030433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 204030433 is about 14283.9221854503. The cubic root of 204030433 is about 588.7058034238.

Adding to 204030433 its reverse (334030402), we get a palindrome (538060835).

The spelling of 204030433 in words is "two hundred four million, thirty thousand, four hundred thirty-three".