195342617 has 2 divisors, whose sum is σ = 195342618. Its totient is φ = 195342616.

The previous prime is 195342607. The next prime is 195342619. The reversal of 195342617 is 716243591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186704896 + 8637721 = 13664^2 + 2939^2 .

It is a cyclic number.

It is not a de Polignac number, because 195342617 - 2⁴ = 195342601 is a prime.

Together with 195342619, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (195342619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97671308 + 97671309.

It is an arithmetic number, because the mean of its divisors is an integer number (97671309).

Almost surely, 2^195342617 is an apocalyptic number.

It is an amenable number.

195342617 is a deficient number, since it is larger than the sum of its proper divisors (1).

195342617 is an equidigital number, since it uses as much as digits as its factorization.

195342617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 38.

The square root of 195342617 is about 13976.5023163880. The cubic root of 195342617 is about 580.2284246915.

The spelling of 195342617 in words is "one hundred ninety-five million, three hundred forty-two thousand, six hundred seventeen".