195342619 has 2 divisors, whose sum is σ = 195342620. Its totient is φ = 195342618.

The previous prime is 195342617. The next prime is 195342643. The reversal of 195342619 is 916243591.

195342619 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (916243591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 195342619 - 2¹ = 195342617 is a prime.

It is a super-2 number, since 2×195342619² = 76317477595558322, which contains 22 as substring.

Together with 195342617, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (195342617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97671309 + 97671310.

It is an arithmetic number, because the mean of its divisors is an integer number (97671310).

Almost surely, 2^195342619 is an apocalyptic number.

195342619 is a deficient number, since it is larger than the sum of its proper divisors (1).

195342619 is an equidigital number, since it uses as much as digits as its factorization.

195342619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 40.

The square root of 195342619 is about 13976.5023879367. The cubic root of 195342619 is about 580.2284266717.

The spelling of 195342619 in words is "one hundred ninety-five million, three hundred forty-two thousand, six hundred nineteen".