163105 has 4 divisors (see below), whose sum is σ = 195732. Its totient is φ = 130480.

The previous prime is 163063. The next prime is 163109. The reversal of 163105 is 501361.

163105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 77841 + 85264 = 279^2 + 292^2 .

It is not a de Polignac number, because 163105 - 2⁹ = 162593 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163109) 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, 16306 + ... + 16315.

It is an arithmetic number, because the mean of its divisors is an integer number (48933).

2¹⁶³¹⁰⁵ is an apocalyptic number.

It is an amenable number.

163105 is a deficient number, since it is larger than the sum of its proper divisors (32627).

163105 is an equidigital number, since it uses as much as digits as its factorization.

163105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32626.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 163105 is about 403.8626003977. The cubic root of 163105 is about 54.6372826089.

Adding to 163105 its reverse (501361), we get a palindrome (664466).

The spelling of 163105 in words is "one hundred sixty-three thousand, one hundred five".