204576481 has 2 divisors, whose sum is σ = 204576482. Its totient is φ = 204576480.

The previous prime is 204576473. The next prime is 204576539. The reversal of 204576481 is 184675402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172029456 + 32547025 = 13116^2 + 5705^2 .

It is a cyclic number.

It is not a de Polignac number, because 204576481 - 2³ = 204576473 is a prime.

It is a super-2 number, since 2×204576481² = 83703073156686722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 204576481.

It is not a weakly prime, because it can be changed into another prime (204576451) 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 as a sum of consecutive naturals, namely, 102288240 + 102288241.

It is an arithmetic number, because the mean of its divisors is an integer number (102288241).

Almost surely, 2^204576481 is an apocalyptic number.

It is an amenable number.

204576481 is a deficient number, since it is larger than the sum of its proper divisors (1).

204576481 is an equidigital number, since it uses as much as digits as its factorization.

204576481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 204576481 is about 14303.0234915559. The cubic root of 204576481 is about 589.2305213475.

The spelling of 204576481 in words is "two hundred four million, five hundred seventy-six thousand, four hundred eighty-one".