204054771 has 4 divisors (see below), whose sum is σ = 272073032. Its totient is φ = 136036512.

The previous prime is 204054769. The next prime is 204054779. The reversal of 204054771 is 177450402.

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

It is not a de Polignac number, because 204054771 - 2¹ = 204054769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204054779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34009126 + ... + 34009131.

It is an arithmetic number, because the mean of its divisors is an integer number (68018258).

Almost surely, 2^204054771 is an apocalyptic number.

204054771 is a deficient number, since it is larger than the sum of its proper divisors (68018261).

204054771 is an equidigital number, since it uses as much as digits as its factorization.

204054771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68018260.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 204054771 is about 14284.7740969187. The cubic root of 204054771 is about 588.7292106380.

The spelling of 204054771 in words is "two hundred four million, fifty-four thousand, seven hundred seventy-one".