204305401 has 2 divisors, whose sum is σ = 204305402. Its totient is φ = 204305400.

The previous prime is 204305399. The next prime is 204305417. The reversal of 204305401 is 104503402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199487376 + 4818025 = 14124^2 + 2195^2 .

It is a cyclic number.

It is not a de Polignac number, because 204305401 - 2¹ = 204305399 is a prime.

Together with 204305399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (204305471) 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, 102152700 + 102152701.

It is an arithmetic number, because the mean of its divisors is an integer number (102152701).

Almost surely, 2^204305401 is an apocalyptic number.

It is an amenable number.

204305401 is a deficient number, since it is larger than the sum of its proper divisors (1).

204305401 is an equidigital number, since it uses as much as digits as its factorization.

204305401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 204305401 is about 14293.5440321846. The cubic root of 204305401 is about 588.9701473105.

Adding to 204305401 its reverse (104503402), we get a palindrome (308808803).

The spelling of 204305401 in words is "two hundred four million, three hundred five thousand, four hundred one".