204321401 has 4 divisors (see below), whose sum is σ = 204653172. Its totient is φ = 203989632.

The previous prime is 204321367. The next prime is 204321427. The reversal of 204321401 is 104123402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 97219600 + 107101801 = 9860^2 + 10349^2 .

It is a cyclic number.

It is not a de Polignac number, because 204321401 - 2¹⁰ = 204320377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204321401.

It is not an unprimeable number, because it can be changed into a prime (204321431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164960 + ... + 166193.

It is an arithmetic number, because the mean of its divisors is an integer number (51163293).

Almost surely, 2^204321401 is an apocalyptic number.

It is an amenable number.

204321401 is a deficient number, since it is larger than the sum of its proper divisors (331771).

204321401 is an equidigital number, since it uses as much as digits as its factorization.

204321401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331770.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 204321401 is about 14294.1037144691. The cubic root of 204321401 is about 588.9855218043.

Adding to 204321401 its reverse (104123402), we get a palindrome (308444803).

The spelling of 204321401 in words is "two hundred four million, three hundred twenty-one thousand, four hundred one".