204530459 has 12 divisors (see below), whose sum is σ = 250446600. Its totient is φ = 166084128.

The previous prime is 204530453. The next prime is 204530479. The reversal of 204530459 is 954035402.

It is a happy number.

It is not a de Polignac number, because 204530459 - 2⁸ = 204530203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204530453) 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 11 ways as a sum of consecutive naturals, for example, 108914 + ... + 110775.

It is an arithmetic number, because the mean of its divisors is an integer number (20870550).

Almost surely, 2^204530459 is an apocalyptic number.

204530459 is a deficient number, since it is larger than the sum of its proper divisors (45916141).

204530459 is a wasteful number, since it uses less digits than its factorization.

204530459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219722 (or 219715 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 204530459 is about 14301.4145803833. The cubic root of 204530459 is about 589.1863331452.

The spelling of 204530459 in words is "two hundred four million, five hundred thirty thousand, four hundred fifty-nine".