128168 has 16 divisors (see below), whose sum is σ = 247380. Its totient is φ = 62208.

The previous prime is 128159. The next prime is 128173. The reversal of 128168 is 861821.

It can be written as a sum of positive squares in 2 ways, for example, as 128164 + 4 = 358^2 + 2^2 .

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a plaindrome in base 14.

It is an unprimeable number.

128168 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80 + ... + 512.

2¹²⁸¹⁶⁸ is an apocalyptic number.

It is an amenable number.

128168 is a deficient number, since it is larger than the sum of its proper divisors (119212).

128168 is a wasteful number, since it uses less digits than its factorization.

128168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 472 counting only the distinct ones).

The product of its digits is 768, while the sum is 26.

The square root of 128168 is about 358.0055865486. The cubic root of 128168 is about 50.4188809749.

Adding to 128168 its reverse (861821), we get a palindrome (989989).

The spelling of 128168 in words is "one hundred twenty-eight thousand, one hundred sixty-eight".