195173 has 6 divisors (see below), whose sum is σ = 214662. Its totient is φ = 177320.

The previous prime is 195163. The next prime is 195193. The reversal of 195173 is 371591.

It can be written as a sum of positive squares in only one way, i.e., 174724 + 20449 = 418^2 + 143^2 .

It is not a de Polignac number, because 195173 - 2⁴ = 195157 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 (195103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 686 + ... + 927.

It is an arithmetic number, because the mean of its divisors is an integer number (35777).

2¹⁹⁵¹⁷³ is an apocalyptic number.

It is an amenable number.

195173 is a deficient number, since it is larger than the sum of its proper divisors (19489).

195173 is a wasteful number, since it uses less digits than its factorization.

195173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635 (or 1624 counting only the distinct ones).

The product of its digits is 945, while the sum is 26.

The square root of 195173 is about 441.7838838165. The cubic root of 195173 is about 58.0060437618.

The spelling of 195173 in words is "one hundred ninety-five thousand, one hundred seventy-three".