195680923 has 2 divisors, whose sum is σ = 195680924. Its totient is φ = 195680922.

The previous prime is 195680921. The next prime is 195681029. The reversal of 195680923 is 329086591.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 195680923 - 2¹ = 195680921 is a prime.

It is a super-2 number, since 2×195680923² = 76582047252263858, which contains 22 as substring.

Together with 195680921, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 195680923.

It is not a weakly prime, because it can be changed into another prime (195680921) 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, 97840461 + 97840462.

It is an arithmetic number, because the mean of its divisors is an integer number (97840462).

Almost surely, 2^195680923 is an apocalyptic number.

195680923 is a deficient number, since it is larger than the sum of its proper divisors (1).

195680923 is an equidigital number, since it uses as much as digits as its factorization.

195680923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 195680923 is about 13988.5997512260. The cubic root of 195680923 is about 580.5631895797.

The spelling of 195680923 in words is "one hundred ninety-five million, six hundred eighty thousand, nine hundred twenty-three".