168122 has 4 divisors (see below), whose sum is σ = 252186. Its totient is φ = 84060.

The previous prime is 168109. The next prime is 168127. The reversal of 168122 is 221861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221861 = 149 ⋅1489.

It can be written as a sum of positive squares in only one way, i.e., 167281 + 841 = 409^2 + 29^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 168094 and 168103.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 168122.

It is not an unprimeable number, because it can be changed into a prime (168127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42029 + ... + 42032.

2¹⁶⁸¹²² is an apocalyptic number.

168122 is a deficient number, since it is larger than the sum of its proper divisors (84064).

168122 is an equidigital number, since it uses as much as digits as its factorization.

168122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84063.

The product of its digits is 192, while the sum is 20.

The square root of 168122 is about 410.0268283905. The cubic root of 168122 is about 55.1918369922.

Adding to 168122 its reverse (221861), we get a palindrome (389983).

The spelling of 168122 in words is "one hundred sixty-eight thousand, one hundred twenty-two".