205173141 has 4 divisors (see below), whose sum is σ = 273564192. Its totient is φ = 136782092.

The previous prime is 205173127. The next prime is 205173161. The reversal of 205173141 is 141371502.

205173141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 205173141 - 2⁵ = 205173109 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 (205173161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34195521 + ... + 34195526.

It is an arithmetic number, because the mean of its divisors is an integer number (68391048).

Almost surely, 2^205173141 is an apocalyptic number.

It is an amenable number.

205173141 is a deficient number, since it is larger than the sum of its proper divisors (68391051).

205173141 is an equidigital number, since it uses as much as digits as its factorization.

205173141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68391050.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 205173141 is about 14323.8661331360. The cubic root of 205173141 is about 589.8028077963.

The spelling of 205173141 in words is "two hundred five million, one hundred seventy-three thousand, one hundred forty-one".