195545 has 16 divisors (see below), whose sum is σ = 277248. Its totient is φ = 129600.

The previous prime is 195541. The next prime is 195581. The reversal of 195545 is 545591.

It is not a de Polignac number, because 195545 - 2² = 195541 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195541) 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 in 15 ways as a sum of consecutive naturals, for example, 1220 + ... + 1370.

It is an arithmetic number, because the mean of its divisors is an integer number (17328).

2¹⁹⁵⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

195545 is a deficient number, since it is larger than the sum of its proper divisors (81703).

195545 is a wasteful number, since it uses less digits than its factorization.

195545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200.

The product of its digits is 4500, while the sum is 29.

The square root of 195545 is about 442.2047037289. The cubic root of 195545 is about 58.0428735716.

The spelling of 195545 in words is "one hundred ninety-five thousand, five hundred forty-five".