195243 has 8 divisors (see below), whose sum is σ = 262656. Its totient is φ = 129000.

The previous prime is 195241. The next prime is 195253. The reversal of 195243 is 342591.

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

It is not a de Polignac number, because 195243 - 2¹ = 195241 is a prime.

195243 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (195241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238 + ... + 668.

It is an arithmetic number, because the mean of its divisors is an integer number (32832).

2¹⁹⁵²⁴³ is an apocalyptic number.

195243 is a deficient number, since it is larger than the sum of its proper divisors (67413).

195243 is a wasteful number, since it uses less digits than its factorization.

195243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585.

The product of its digits is 1080, while the sum is 24.

The square root of 195243 is about 441.8631009713. The cubic root of 195243 is about 58.0129776747.

The spelling of 195243 in words is "one hundred ninety-five thousand, two hundred forty-three".