195315347 has 2 divisors, whose sum is σ = 195315348. Its totient is φ = 195315346.

The previous prime is 195315293. The next prime is 195315361. The reversal of 195315347 is 743513591.

It is a strong prime.

It is an emirp because it is prime and its reverse (743513591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 195315347 - 2²⁰ = 194266771 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 195315347.

It is not a weakly prime, because it can be changed into another prime (195315047) 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, 97657673 + 97657674.

It is an arithmetic number, because the mean of its divisors is an integer number (97657674).

Almost surely, 2^195315347 is an apocalyptic number.

195315347 is a deficient number, since it is larger than the sum of its proper divisors (1).

195315347 is an equidigital number, since it uses as much as digits as its factorization.

195315347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 38.

The square root of 195315347 is about 13975.5267163710. The cubic root of 195315347 is about 580.2014233033.

The spelling of 195315347 in words is "one hundred ninety-five million, three hundred fifteen thousand, three hundred forty-seven".