195217 has 4 divisors (see below), whose sum is σ = 212976. Its totient is φ = 177460.

The previous prime is 195203. The next prime is 195229. The reversal of 195217 is 712591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 712591 = 11 ⋅64781.

It is a cyclic number.

It is not a de Polignac number, because 195217 - 2⁷ = 195089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 195191 and 195200.

It is not an unprimeable number, because it can be changed into a prime (195277) 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, 8863 + ... + 8884.

It is an arithmetic number, because the mean of its divisors is an integer number (53244).

2¹⁹⁵²¹⁷ is an apocalyptic number.

It is an amenable number.

195217 is a deficient number, since it is larger than the sum of its proper divisors (17759).

195217 is a wasteful number, since it uses less digits than its factorization.

195217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17758.

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

The square root of 195217 is about 441.8336791147. The cubic root of 195217 is about 58.0104024148.

The spelling of 195217 in words is "one hundred ninety-five thousand, two hundred seventeen".