205080771 has 8 divisors (see below), whose sum is σ = 312504064. Its totient is φ = 117189000.

The previous prime is 205080763. The next prime is 205080773. The reversal of 205080771 is 177080502.

It is a happy number.

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

It is not a de Polignac number, because 205080771 - 2³ = 205080763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205080773) 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, 4882855 + ... + 4882896.

It is an arithmetic number, because the mean of its divisors is an integer number (39063008).

Almost surely, 2^205080771 is an apocalyptic number.

205080771 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

205080771 is a deficient number, since it is larger than the sum of its proper divisors (107423293).

205080771 is an equidigital number, since it uses as much as digits as its factorization.

205080771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9765761.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 205080771 is about 14320.6414311650. The cubic root of 205080771 is about 589.7142837609.

The spelling of 205080771 in words is "two hundred five million, eighty thousand, seven hundred seventy-one".