195835217 has 2 divisors, whose sum is σ = 195835218. Its totient is φ = 195835216.

The previous prime is 195835187. The next prime is 195835247. The reversal of 195835217 is 712538591.

195835217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (195835187) and next prime (195835247).

It can be written as a sum of positive squares in only one way, i.e., 169937296 + 25897921 = 13036^2 + 5089^2 .

It is an emirp because it is prime and its reverse (712538591) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195835217 is a prime.

It is not a weakly prime, because it can be changed into another prime (195835247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97917608 + 97917609.

It is an arithmetic number, because the mean of its divisors is an integer number (97917609).

Almost surely, 2^195835217 is an apocalyptic number.

It is an amenable number.

195835217 is a deficient number, since it is larger than the sum of its proper divisors (1).

195835217 is an equidigital number, since it uses as much as digits as its factorization.

195835217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 41.

The square root of 195835217 is about 13994.1136553910. The cubic root of 195835217 is about 580.7157404464.

The spelling of 195835217 in words is "one hundred ninety-five million, eight hundred thirty-five thousand, two hundred seventeen".