204001361 has 4 divisors (see below), whose sum is σ = 204364272. Its totient is φ = 203638452.

The previous prime is 204001339. The next prime is 204001367. The reversal of 204001361 is 163100402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 204001361 - 2²² = 199807057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204001367) 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, 180611 + ... + 181736.

It is an arithmetic number, because the mean of its divisors is an integer number (51091068).

Almost surely, 2^204001361 is an apocalyptic number.

It is an amenable number.

204001361 is a deficient number, since it is larger than the sum of its proper divisors (362911).

204001361 is an equidigital number, since it uses as much as digits as its factorization.

204001361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362910.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 204001361 is about 14282.9045015361. The cubic root of 204001361 is about 588.6778408174.

Adding to 204001361 its reverse (163100402), we get a palindrome (367101763).

The spelling of 204001361 in words is "two hundred four million, one thousand, three hundred sixty-one".