128026 has 4 divisors (see below), whose sum is σ = 192042. Its totient is φ = 64012.

The previous prime is 128021. The next prime is 128033. The reversal of 128026 is 620821.

It is a happy number.

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., 65025 + 63001 = 255^2 + 251^2 .

It is a junction number, because it is equal to n+sod(n) for n = 127994 and 128012.

It is not an unprimeable number, because it can be changed into a prime (128021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32005 + ... + 32008.

2¹²⁸⁰²⁶ is an apocalyptic number.

128026 is a deficient number, since it is larger than the sum of its proper divisors (64016).

128026 is an equidigital number, since it uses as much as digits as its factorization.

128026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64015.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 128026 is about 357.8072106596. The cubic root of 128026 is about 50.4002540510.

Adding to 128026 its reverse (620821), we get a palindrome (748847).

The spelling of 128026 in words is "one hundred twenty-eight thousand, twenty-six".