195371329 has 2 divisors, whose sum is σ = 195371330. Its totient is φ = 195371328.

The previous prime is 195371291. The next prime is 195371377. The reversal of 195371329 is 923173591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152769600 + 42601729 = 12360^2 + 6527^2 .

It is an emirp because it is prime and its reverse (923173591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 195371329 - 2¹³ = 195363137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 195371291 and 195371300.

It is not a weakly prime, because it can be changed into another prime (195371389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97685664 + 97685665.

It is an arithmetic number, because the mean of its divisors is an integer number (97685665).

Almost surely, 2^195371329 is an apocalyptic number.

It is an amenable number.

195371329 is a deficient number, since it is larger than the sum of its proper divisors (1).

195371329 is an equidigital number, since it uses as much as digits as its factorization.

195371329 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 195371329 is about 13977.5294311978. The cubic root of 195371329 is about 580.2568511602.

The spelling of 195371329 in words is "one hundred ninety-five million, three hundred seventy-one thousand, three hundred twenty-nine".