195342985 has 16 divisors (see below), whose sum is σ = 245235600. Its totient is φ = 149180416.

The previous prime is 195342929. The next prime is 195343003. The reversal of 195342985 is 589243591.

It can be written as a sum of positive squares in 8 ways, for example, as 5702544 + 189640441 = 2388^2 + 13771^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195342985 is a prime.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 5337 + ... + 20473.

It is an arithmetic number, because the mean of its divisors is an integer number (15327225).

Almost surely, 2^195342985 is an apocalyptic number.

It is an amenable number.

195342985 is a deficient number, since it is larger than the sum of its proper divisors (49892615).

195342985 is a wasteful number, since it uses less digits than its factorization.

195342985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15260.

The product of its digits is 388800, while the sum is 46.

The square root of 195342985 is about 13976.5154813351. The cubic root of 195342985 is about 580.2287890495.

The spelling of 195342985 in words is "one hundred ninety-five million, three hundred forty-two thousand, nine hundred eighty-five".