128276 has 6 divisors (see below), whose sum is σ = 224490. Its totient is φ = 64136.

The previous prime is 128273. The next prime is 128287. The reversal of 128276 is 672821.

It can be written as a sum of positive squares in only one way, i.e., 122500 + 5776 = 350^2 + 76^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16031 + ... + 16038.

It is an arithmetic number, because the mean of its divisors is an integer number (37415).

2¹²⁸²⁷⁶ is an apocalyptic number.

It is an amenable number.

128276 is a deficient number, since it is larger than the sum of its proper divisors (96214).

128276 is a wasteful number, since it uses less digits than its factorization.

128276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32073 (or 32071 counting only the distinct ones).

The product of its digits is 1344, while the sum is 26.

The square root of 128276 is about 358.1563904218. The cubic root of 128276 is about 50.4330387220.

It can be divided in two parts, 128 and 276, that added together give a palindrome (404).

The spelling of 128276 in words is "one hundred twenty-eight thousand, two hundred seventy-six".