12195 has 12 divisors (see below), whose sum is σ = 21216. Its totient is φ = 6480.

The previous prime is 12163. The next prime is 12197. The reversal of 12195 is 59121.

12195 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12195 - 2⁵ = 12163 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12197) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91 + ... + 180.

It is an arithmetic number, because the mean of its divisors is an integer number (1768).

2¹²¹⁹⁵ is an apocalyptic number.

12195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12195 is a deficient number, since it is larger than the sum of its proper divisors (9021).

12195 is a wasteful number, since it uses less digits than its factorization.

12195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 279 counting only the distinct ones).

The product of its digits is 90, while the sum is 18.

The square root of 12195 is about 110.4309739158. The cubic root of 12195 is about 23.0176298353.

It can be divided in two parts, 121 and 95, that added together give a cube (216 = 6³).

The spelling of 12195 in words is "twelve thousand, one hundred ninety-five".