204573841 has 2 divisors, whose sum is σ = 204573842. Its totient is φ = 204573840.

The previous prime is 204573793. The next prime is 204573857. The reversal of 204573841 is 148375402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190854225 + 13719616 = 13815^2 + 3704^2 .

It is a cyclic number.

It is not a de Polignac number, because 204573841 - 2⁹ = 204573329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204573797 and 204573806.

It is not a weakly prime, because it can be changed into another prime (204523841) 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, 102286920 + 102286921.

It is an arithmetic number, because the mean of its divisors is an integer number (102286921).

Almost surely, 2^204573841 is an apocalyptic number.

It is an amenable number.

204573841 is a deficient number, since it is larger than the sum of its proper divisors (1).

204573841 is an equidigital number, since it uses as much as digits as its factorization.

204573841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 204573841 is about 14302.9312030786. The cubic root of 204573841 is about 589.2279867204.

The spelling of 204573841 in words is "two hundred four million, five hundred seventy-three thousand, eight hundred forty-one".