217195 has 12 divisors (see below), whose sum is σ = 287280. Its totient is φ = 157520.

The previous prime is 217169. The next prime is 217199. The reversal of 217195 is 591712.

217195 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 217195 - 2⁵ = 217163 is a prime.

217195 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (217199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 426 + ... + 784.

It is an arithmetic number, because the mean of its divisors is an integer number (23940).

2²¹⁷¹⁹⁵ is an apocalyptic number.

217195 is a deficient number, since it is larger than the sum of its proper divisors (70085).

217195 is a wasteful number, since it uses less digits than its factorization.

217195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 375 counting only the distinct ones).

The product of its digits is 630, while the sum is 25.

The square root of 217195 is about 466.0418436149. The cubic root of 217195 is about 60.1104447228.

The spelling of 217195 in words is "two hundred seventeen thousand, one hundred ninety-five".