195166171 has 4 divisors (see below), whose sum is σ = 206646552. Its totient is φ = 183685792.

The previous prime is 195166163. The next prime is 195166177. The reversal of 195166171 is 171661591.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 171661591 = 5107 ⋅33613.

It is a cyclic number.

It is not a de Polignac number, because 195166171 - 2³ = 195166163 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 195166171.

It is not an unprimeable number, because it can be changed into a prime (195166177) 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, 5740165 + ... + 5740198.

It is an arithmetic number, because the mean of its divisors is an integer number (51661638).

Almost surely, 2^195166171 is an apocalyptic number.

195166171 is a deficient number, since it is larger than the sum of its proper divisors (11480381).

195166171 is a wasteful number, since it uses less digits than its factorization.

195166171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11480380.

The product of its digits is 11340, while the sum is 37.

The square root of 195166171 is about 13970.1886529853. The cubic root of 195166171 is about 580.0536722031.

The spelling of 195166171 in words is "one hundred ninety-five million, one hundred sixty-six thousand, one hundred seventy-one".