195365 has 8 divisors (see below), whose sum is σ = 240408. Its totient is φ = 152320.

The previous prime is 195359. The next prime is 195389. The reversal of 195365 is 563591.

It is a Cunningham number, because it is equal to 442²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 195364 = 1^2 + 442^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-195365 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 195365.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272 + ... + 681.

It is an arithmetic number, because the mean of its divisors is an integer number (30051).

2¹⁹⁵³⁶⁵ is an apocalyptic number.

It is an amenable number.

195365 is a deficient number, since it is larger than the sum of its proper divisors (45043).

195365 is an equidigital number, since it uses as much as digits as its factorization.

195365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999.

The product of its digits is 4050, while the sum is 29.

The square root of 195365 is about 442.0011312203. The cubic root of 195365 is about 58.0250585339.

The spelling of 195365 in words is "one hundred ninety-five thousand, three hundred sixty-five".