216195 has 32 divisors (see below), whose sum is σ = 414720. Its totient is φ = 94080.

The previous prime is 216179. The next prime is 216211. The reversal of 216195 is 591612.

It is an interprime number because it is at equal distance from previous prime (216179) and next prime (216211).

It is not a de Polignac number, because 216195 - 2⁴ = 216179 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3010 + ... + 3080.

It is an arithmetic number, because the mean of its divisors is an integer number (12960).

2²¹⁶¹⁹⁵ is an apocalyptic number.

216195 is a deficient number, since it is larger than the sum of its proper divisors (198525).

216195 is a wasteful number, since it uses less digits than its factorization.

216195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115.

The product of its digits is 540, while the sum is 24.

The square root of 216195 is about 464.9677408165. The cubic root of 216195 is about 60.0180501249.

It can be divided in two parts, 21 and 6195, that added together give a triangular number (6216 = T₁₁₁).

The spelling of 216195 in words is "two hundred sixteen thousand, one hundred ninety-five".