204047273 has 4 divisors (see below), whose sum is σ = 205174788. Its totient is φ = 202919760.

The previous prime is 204047269. The next prime is 204047293. The reversal of 204047273 is 372740402.

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 18079504 + 185967769 = 4252^2 + 13637^2 .

It is a cyclic number.

It is not a de Polignac number, because 204047273 - 2² = 204047269 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204047203) 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, 563486 + ... + 563847.

It is an arithmetic number, because the mean of its divisors is an integer number (51293697).

Almost surely, 2^204047273 is an apocalyptic number.

It is an amenable number.

204047273 is a deficient number, since it is larger than the sum of its proper divisors (1127515).

204047273 is a wasteful number, since it uses less digits than its factorization.

204047273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127514.

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 204047273 is about 14284.5116472353. The cubic root of 204047273 is about 588.7219995909.

Adding to 204047273 its reverse (372740402), we get a palindrome (576787675).

The spelling of 204047273 in words is "two hundred four million, forty-seven thousand, two hundred seventy-three".