128083234 has 4 divisors (see below), whose sum is σ = 192124854. Its totient is φ = 64041616.

The previous prime is 128083229. The next prime is 128083247. The reversal of 128083234 is 432380821.

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., 125507209 + 2576025 = 11203^2 + 1605^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 128083196 and 128083205.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32020807 + ... + 32020810.

Almost surely, 2^128083234 is an apocalyptic number.

128083234 is a deficient number, since it is larger than the sum of its proper divisors (64041620).

128083234 is an equidigital number, since it uses as much as digits as its factorization.

128083234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64041619.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 128083234 is about 11317.3863590495. The cubic root of 128083234 is about 504.0776340685.

The spelling of 128083234 in words is "one hundred twenty-eight million, eighty-three thousand, two hundred thirty-four".