128043128 has 32 divisors (see below), whose sum is σ = 253756800. Its totient is φ = 60402528.

The previous prime is 128043127. The next prime is 128043161. The reversal of 128043128 is 821340821.

It is a self number, because there is not a number n which added to its sum of digits gives 128043128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128043127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38375 + ... + 41577.

It is an arithmetic number, because the mean of its divisors is an integer number (7929900).

Almost surely, 2^128043128 is an apocalyptic number.

It is an amenable number.

128043128 is a deficient number, since it is larger than the sum of its proper divisors (125713672).

128043128 is a wasteful number, since it uses less digits than its factorization.

128043128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491 (or 3487 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 128043128 is about 11315.6143447892. The cubic root of 128043128 is about 504.0250155552.

Adding to 128043128 its reverse (821340821), we get a palindrome (949383949).

The spelling of 128043128 in words is "one hundred twenty-eight million, forty-three thousand, one hundred twenty-eight".