195368687 has 2 divisors, whose sum is σ = 195368688. Its totient is φ = 195368686.

The previous prime is 195368671. The next prime is 195368699. The reversal of 195368687 is 786863591.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 195368687 - 2⁴ = 195368671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195368627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97684343 + 97684344.

It is an arithmetic number, because the mean of its divisors is an integer number (97684344).

Almost surely, 2^195368687 is an apocalyptic number.

195368687 is a deficient number, since it is larger than the sum of its proper divisors (1).

195368687 is an equidigital number, since it uses as much as digits as its factorization.

195368687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 53.

The square root of 195368687 is about 13977.4349220449. The cubic root of 195368687 is about 580.2542355504.

The spelling of 195368687 in words is "one hundred ninety-five million, three hundred sixty-eight thousand, six hundred eighty-seven".