195189 has 4 divisors (see below), whose sum is σ = 260256. Its totient is φ = 130124.

The previous prime is 195163. The next prime is 195193. The reversal of 195189 is 981591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 195189 - 2⁵ = 195157 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32529 + ... + 32534.

It is an arithmetic number, because the mean of its divisors is an integer number (65064).

2¹⁹⁵¹⁸⁹ is an apocalyptic number.

It is an amenable number.

195189 is a deficient number, since it is larger than the sum of its proper divisors (65067).

195189 is an equidigital number, since it uses as much as digits as its factorization.

195189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65066.

The product of its digits is 3240, while the sum is 33.

The square root of 195189 is about 441.8019918470. The cubic root of 195189 is about 58.0076288023.

The spelling of 195189 in words is "one hundred ninety-five thousand, one hundred eighty-nine".