195424319 has 2 divisors, whose sum is σ = 195424320. Its totient is φ = 195424318.

The previous prime is 195424289. The next prime is 195424321. The reversal of 195424319 is 913424591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 195424319 - 2¹² = 195420223 is a prime.

It is a super-2 number, since 2×195424319² = 76381328913227522, which contains 22 as substring.

Together with 195424321, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195424219) 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, 97712159 + 97712160.

It is an arithmetic number, because the mean of its divisors is an integer number (97712160).

Almost surely, 2^195424319 is an apocalyptic number.

195424319 is a deficient number, since it is larger than the sum of its proper divisors (1).

195424319 is an equidigital number, since it uses as much as digits as its factorization.

195424319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 38.

The square root of 195424319 is about 13979.4248451072. The cubic root of 195424319 is about 580.3093068800.

The spelling of 195424319 in words is "one hundred ninety-five million, four hundred twenty-four thousand, three hundred nineteen".