195808607 has 2 divisors, whose sum is σ = 195808608. Its totient is φ = 195808606.

The previous prime is 195808589. The next prime is 195808631. The reversal of 195808607 is 706808591.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (706808591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 195808607 - 2⁸ = 195808351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195808687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97904303 + 97904304.

It is an arithmetic number, because the mean of its divisors is an integer number (97904304).

Almost surely, 2^195808607 is an apocalyptic number.

195808607 is a deficient number, since it is larger than the sum of its proper divisors (1).

195808607 is an equidigital number, since it uses as much as digits as its factorization.

195808607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 195808607 is about 13993.1628662001. The cubic root of 195808607 is about 580.6894367916.

The spelling of 195808607 in words is "one hundred ninety-five million, eight hundred eight thousand, six hundred seven".