195117 has 8 divisors (see below), whose sum is σ = 280224. Its totient is φ = 120048.

The previous prime is 195103. The next prime is 195121. The reversal of 195117 is 711591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 195117 - 2⁶ = 195053 is a prime.

195117 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195127) 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 7 ways as a sum of consecutive naturals, for example, 2463 + ... + 2540.

It is an arithmetic number, because the mean of its divisors is an integer number (35028).

2¹⁹⁵¹¹⁷ is an apocalyptic number.

It is an amenable number.

195117 is a deficient number, since it is larger than the sum of its proper divisors (85107).

195117 is a wasteful number, since it uses less digits than its factorization.

195117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5019.

The product of its digits is 315, while the sum is 24.

The square root of 195117 is about 441.7204998639. The cubic root of 195117 is about 58.0004954377. Note that the first 3 decimals are identical.

The spelling of 195117 in words is "one hundred ninety-five thousand, one hundred seventeen".