163895 has 4 divisors (see below), whose sum is σ = 196680. Its totient is φ = 131112.

The previous prime is 163883. The next prime is 163901. The reversal of 163895 is 598361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 598361 = 167 ⋅3583.

It is a cyclic number.

It is not a de Polignac number, because 163895 - 2¹² = 159799 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16385 + ... + 16394.

It is an arithmetic number, because the mean of its divisors is an integer number (49170).

2¹⁶³⁸⁹⁵ is an apocalyptic number.

163895 is a deficient number, since it is larger than the sum of its proper divisors (32785).

163895 is an equidigital number, since it uses as much as digits as its factorization.

163895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32784.

The product of its digits is 6480, while the sum is 32.

The square root of 163895 is about 404.8394743599. The cubic root of 163895 is about 54.7253525694.

The spelling of 163895 in words is "one hundred sixty-three thousand, eight hundred ninety-five".