168106 has 4 divisors (see below), whose sum is σ = 252162. Its totient is φ = 84052.

The previous prime is 168089. The next prime is 168109. The reversal of 168106 is 601861.

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

It can be written as a sum of positive squares in only one way, i.e., 148225 + 19881 = 385^2 + 141^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (168109) by changing a digit.

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 as a sum of consecutive naturals, namely, 42025 + ... + 42028.

2¹⁶⁸¹⁰⁶ is an apocalyptic number.

168106 is a deficient number, since it is larger than the sum of its proper divisors (84056).

168106 is an equidigital number, since it uses as much as digits as its factorization.

168106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84055.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 168106 is about 410.0073170079. The cubic root of 168106 is about 55.1900860863.

Adding to 168106 its reverse (601861), we get a palindrome (769967).

The spelling of 168106 in words is "one hundred sixty-eight thousand, one hundred six".