205272771 has 8 divisors (see below), whose sum is σ = 298578624. Its totient is φ = 124407720.

The previous prime is 205272761. The next prime is 205272779. The reversal of 205272771 is 177272502.

205272771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 205272771 - 2²² = 201078467 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 6220387 = 205272771 / (2 + 0 + 5 + 2 + 7 + 2 + 7 + 7 + 1).

It is not an unprimeable number, because it can be changed into a prime (205272779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3110161 + ... + 3110226.

It is an arithmetic number, because the mean of its divisors is an integer number (37322328).

Almost surely, 2^205272771 is an apocalyptic number.

205272771 is a deficient number, since it is larger than the sum of its proper divisors (93305853).

205272771 is a wasteful number, since it uses less digits than its factorization.

205272771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6220401.

The product of its (nonzero) digits is 13720, while the sum is 33.

The square root of 205272771 is about 14327.3434732333. The cubic root of 205272771 is about 589.8982597718.

The spelling of 205272771 in words is "two hundred five million, two hundred seventy-two thousand, seven hundred seventy-one".