205081773 has 16 divisors (see below), whose sum is σ = 294752640. Its totient is φ = 126085824.

The previous prime is 205081769. The next prime is 205081783. The reversal of 205081773 is 377180502.

205081773 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 205081773 - 2² = 205081769 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205081703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59115 + ... + 62487.

It is an arithmetic number, because the mean of its divisors is an integer number (18422040).

Almost surely, 2^205081773 is an apocalyptic number.

It is an amenable number.

205081773 is a deficient number, since it is larger than the sum of its proper divisors (89670867).

205081773 is a wasteful number, since it uses less digits than its factorization.

205081773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4948.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 205081773 is about 14320.6764155888. The cubic root of 205081773 is about 589.7152441838.

The spelling of 205081773 in words is "two hundred five million, eighty-one thousand, seven hundred seventy-three".