204535039 has 2 divisors, whose sum is σ = 204535040. Its totient is φ = 204535038.

The previous prime is 204534997. The next prime is 204535049. The reversal of 204535039 is 930535402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204535039 - 2¹⁵ = 204502271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204535039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204535049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102267519 + 102267520.

It is an arithmetic number, because the mean of its divisors is an integer number (102267520).

Almost surely, 2^204535039 is an apocalyptic number.

204535039 is a deficient number, since it is larger than the sum of its proper divisors (1).

204535039 is an equidigital number, since it uses as much as digits as its factorization.

204535039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 204535039 is about 14301.5747035073. The cubic root of 204535039 is about 589.1907309470.

The spelling of 204535039 in words is "two hundred four million, five hundred thirty-five thousand, thirty-nine".