195329643 has 8 divisors (see below), whose sum is σ = 275759568. Its totient is φ = 122559744.

The previous prime is 195329621. The next prime is 195329669. The reversal of 195329643 is 346923591.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 195329643 - 2¹⁰ = 195328619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 195329595 and 195329604.

It is not an unprimeable number, because it can be changed into a prime (195322643) 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 in 7 ways as a sum of consecutive naturals, for example, 1914946 + ... + 1915047.

It is an arithmetic number, because the mean of its divisors is an integer number (34469946).

Almost surely, 2^195329643 is an apocalyptic number.

195329643 is a deficient number, since it is larger than the sum of its proper divisors (80429925).

195329643 is a wasteful number, since it uses less digits than its factorization.

195329643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3830013.

The product of its digits is 174960, while the sum is 42.

The square root of 195329643 is about 13976.0381725294. The cubic root of 195329643 is about 580.2155787999.

The spelling of 195329643 in words is "one hundred ninety-five million, three hundred twenty-nine thousand, six hundred forty-three".