195443 has 2 divisors, whose sum is σ = 195444. Its totient is φ = 195442.

The previous prime is 195427. The next prime is 195457. The reversal of 195443 is 344591.

It is a strong prime.

195443 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 195443 - 2⁴ = 195427 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (195413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97721 + 97722.

It is an arithmetic number, because the mean of its divisors is an integer number (97722).

2¹⁹⁵⁴⁴³ is an apocalyptic number.

195443 is a deficient number, since it is larger than the sum of its proper divisors (1).

195443 is an equidigital number, since it uses as much as digits as its factorization.

195443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 26.

The square root of 195443 is about 442.0893574833. The cubic root of 195443 is about 58.0327797265.

The spelling of 195443 in words is "one hundred ninety-five thousand, four hundred forty-three".