128236033 has 4 divisors (see below), whose sum is σ = 128419668. Its totient is φ = 128052400.

The previous prime is 128236007. The next prime is 128236067. The reversal of 128236033 is 330632821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 330632821 = 659 ⋅501719.

It can be written as a sum of positive squares in 2 ways, for example, as 77299264 + 50936769 = 8792^2 + 7137^2 .

It is a cyclic number.

It is not a de Polignac number, because 128236033 - 2¹⁷ = 128104961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128235992 and 128236010.

It is not an unprimeable number, because it can be changed into a prime (128236093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90766 + ... + 92167.

It is an arithmetic number, because the mean of its divisors is an integer number (32104917).

Almost surely, 2^128236033 is an apocalyptic number.

It is an amenable number.

128236033 is a deficient number, since it is larger than the sum of its proper divisors (183635).

128236033 is an equidigital number, since it uses as much as digits as its factorization.

128236033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183634.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 128236033 is about 11324.1349780016. The cubic root of 128236033 is about 504.2780036455.

Adding to 128236033 its reverse (330632821), we get a palindrome (458868854).

The spelling of 128236033 in words is "one hundred twenty-eight million, two hundred thirty-six thousand, thirty-three".