195323719 has 2 divisors, whose sum is σ = 195323720. Its totient is φ = 195323718.

The previous prime is 195323707. The next prime is 195323753. The reversal of 195323719 is 917323591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 195323719 - 2¹⁹ = 194799431 is a prime.

It is a super-2 number, since 2×195323719² = 76302710407981922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195323789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97661859 + 97661860.

It is an arithmetic number, because the mean of its divisors is an integer number (97661860).

Almost surely, 2^195323719 is an apocalyptic number.

195323719 is a deficient number, since it is larger than the sum of its proper divisors (1).

195323719 is an equidigital number, since it uses as much as digits as its factorization.

195323719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51030, while the sum is 40.

The square root of 195323719 is about 13975.8262367561. The cubic root of 195323719 is about 580.2097131057.

The spelling of 195323719 in words is "one hundred ninety-five million, three hundred twenty-three thousand, seven hundred nineteen".