204247083 has 4 divisors (see below), whose sum is σ = 272329448. Its totient is φ = 136164720.

The previous prime is 204247081. The next prime is 204247091. The reversal of 204247083 is 380742402.

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

It is not a de Polignac number, because 204247083 - 2¹ = 204247081 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 204247083.

It is not an unprimeable number, because it can be changed into a prime (204247081) 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 in 3 ways as a sum of consecutive naturals, for example, 34041178 + ... + 34041183.

It is an arithmetic number, because the mean of its divisors is an integer number (68082362).

Almost surely, 2^204247083 is an apocalyptic number.

204247083 is a deficient number, since it is larger than the sum of its proper divisors (68082365).

204247083 is an equidigital number, since it uses as much as digits as its factorization.

204247083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68082364.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 204247083 is about 14291.5038746802. The cubic root of 204247083 is about 588.9141024066.

Adding to 204247083 its reverse (380742402), we get a palindrome (584989485).

The spelling of 204247083 in words is "two hundred four million, two hundred forty-seven thousand, eighty-three".