195065 has 8 divisors (see below), whose sum is σ = 252168. Its totient is φ = 144000.

The previous prime is 195053. The next prime is 195071. The reversal of 195065 is 560591.

It can be written as a sum of positive squares in 4 ways, for example, as 4096 + 190969 = 64^2 + 437^2 .

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

It is not a de Polignac number, because 195065 - 2⁴ = 195049 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1436 + ... + 1565.

It is an arithmetic number, because the mean of its divisors is an integer number (31521).

2¹⁹⁵⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

195065 is a deficient number, since it is larger than the sum of its proper divisors (57103).

195065 is a wasteful number, since it uses less digits than its factorization.

195065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3019.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 195065 is about 441.6616351915. The cubic root of 195065 is about 57.9953424718.

The spelling of 195065 in words is "one hundred ninety-five thousand, sixty-five".