205352171 has 8 divisors (see below), whose sum is σ = 216790080. Its totient is φ = 193977288.

The previous prime is 205352159. The next prime is 205352221. The reversal of 205352171 is 171253502.

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 205352171 - 2²⁶ = 138243307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205352171.

It is not an unprimeable number, because it can be changed into a prime (205352141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8981 + ... + 22166.

It is an arithmetic number, because the mean of its divisors is an integer number (27098760).

Almost surely, 2^205352171 is an apocalyptic number.

205352171 is a deficient number, since it is larger than the sum of its proper divisors (11437909).

205352171 is a wasteful number, since it uses less digits than its factorization.

205352171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31513.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 205352171 is about 14330.1141307388. The cubic root of 205352171 is about 589.9743079878.

The spelling of 205352171 in words is "two hundred five million, three hundred fifty-two thousand, one hundred seventy-one".