204105203 has 4 divisors (see below), whose sum is σ = 205595160. Its totient is φ = 202615248.

The previous prime is 204105157. The next prime is 204105211. The reversal of 204105203 is 302501402.

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

It is a cyclic number.

It is not a de Polignac number, because 204105203 - 2¹⁰ = 204104179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204101203) 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, 744773 + ... + 745046.

It is an arithmetic number, because the mean of its divisors is an integer number (51398790).

Almost surely, 2^204105203 is an apocalyptic number.

204105203 is a deficient number, since it is larger than the sum of its proper divisors (1489957).

204105203 is a wasteful number, since it uses less digits than its factorization.

204105203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489956.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 204105203 is about 14286.5392240388. The cubic root of 204105203 is about 588.7777079863. Note that the first 4 decimals are identical.

Adding to 204105203 its reverse (302501402), we get a palindrome (506606605).

The spelling of 204105203 in words is "two hundred four million, one hundred five thousand, two hundred three".