128235 has 16 divisors (see below), whose sum is σ = 209664. Its totient is φ = 66912.

The previous prime is 128221. The next prime is 128237. The reversal of 128235 is 532821.

128235 is nontrivially palindromic in base 11.

It is not a de Polignac number, because 128235 - 2⁵ = 128203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1194 + ... + 1296.

It is an arithmetic number, because the mean of its divisors is an integer number (13104).

2¹²⁸²³⁵ is an apocalyptic number.

128235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128235 is a deficient number, since it is larger than the sum of its proper divisors (81429).

128235 is a wasteful number, since it uses less digits than its factorization.

128235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194.

The product of its digits is 480, while the sum is 21.

The square root of 128235 is about 358.0991482816. The cubic root of 128235 is about 50.4276649578.

It can be divided in two parts, 128 and 235, that added together give a palindrome (363).

The spelling of 128235 in words is "one hundred twenty-eight thousand, two hundred thirty-five".