68128 has 12 divisors (see below), whose sum is σ = 134190. Its totient is φ = 34048.

The previous prime is 68113. The next prime is 68141. The reversal of 68128 is 82186.

It can be written as a sum of positive squares in only one way, i.e., 63504 + 4624 = 252^2 + 68^2 .

It is a congruent number.

It is an unprimeable number.

68128 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 as a sum of consecutive naturals, namely, 1033 + ... + 1096.

2⁶⁸¹²⁸ is an apocalyptic number.

It is an amenable number.

68128 is a deficient number, since it is larger than the sum of its proper divisors (66062).

68128 is a wasteful number, since it uses less digits than its factorization.

68128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139 (or 2131 counting only the distinct ones).

The product of its digits is 768, while the sum is 25.

The square root of 68128 is about 261.0134096172. The cubic root of 68128 is about 40.8421453516.

It can be divided in two parts, 68 and 128, that added together give a square (196 = 14²).

The spelling of 68128 in words is "sixty-eight thousand, one hundred twenty-eight".