195152717 has 2 divisors, whose sum is σ = 195152718. Its totient is φ = 195152716.

The previous prime is 195152663. The next prime is 195152729. The reversal of 195152717 is 717251591.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182628196 + 12524521 = 13514^2 + 3539^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195152717 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195152767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97576358 + 97576359.

It is an arithmetic number, because the mean of its divisors is an integer number (97576359).

Almost surely, 2^195152717 is an apocalyptic number.

It is an amenable number.

195152717 is a deficient number, since it is larger than the sum of its proper divisors (1).

195152717 is an equidigital number, since it uses as much as digits as its factorization.

195152717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22050, while the sum is 38.

The square root of 195152717 is about 13969.7071193350. The cubic root of 195152717 is about 580.0403430123.

The spelling of 195152717 in words is "one hundred ninety-five million, one hundred fifty-two thousand, seven hundred seventeen".