128234 has 8 divisors (see below), whose sum is σ = 194628. Its totient is φ = 63360.

The previous prime is 128221. The next prime is 128237. The reversal of 128234 is 432821.

It can be written as a sum of positive squares in 2 ways, for example, as 126025 + 2209 = 355^2 + 47^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137 + ... + 524.

2¹²⁸²³⁴ is an apocalyptic number.

128234 is a deficient number, since it is larger than the sum of its proper divisors (66394).

128234 is an equidigital number, since it uses as much as digits as its factorization.

128234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760.

The product of its digits is 384, while the sum is 20.

The square root of 128234 is about 358.0977520175. The cubic root of 128234 is about 50.4275338761.

The spelling of 128234 in words is "one hundred twenty-eight thousand, two hundred thirty-four".