205272173 has 8 divisors (see below), whose sum is σ = 212593920. Its totient is φ = 197994240.

The previous prime is 205272163. The next prime is 205272187. The reversal of 205272173 is 371272502.

205272173 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 a cyclic number.

It is not a de Polignac number, because 205272173 - 2⁴ = 205272157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205272103) 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, 1268 + ... + 20301.

It is an arithmetic number, because the mean of its divisors is an integer number (26574240).

Almost surely, 2^205272173 is an apocalyptic number.

It is an amenable number.

205272173 is a deficient number, since it is larger than the sum of its proper divisors (7321747).

205272173 is a wasteful number, since it uses less digits than its factorization.

205272173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21907.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 205272173 is about 14327.3226040318. The cubic root of 205272173 is about 589.8976869413.

The spelling of 205272173 in words is "two hundred five million, two hundred seventy-two thousand, one hundred seventy-three".