128833144 has 32 divisors (see below), whose sum is σ = 264378240. Its totient is φ = 58370400.

The previous prime is 128833141. The next prime is 128833147. The reversal of 128833144 is 441338821.

It is an interprime number because it is at equal distance from previous prime (128833141) and next prime (128833147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128833141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26917 + ... + 31339.

It is an arithmetic number, because the mean of its divisors is an integer number (8261820).

Almost surely, 2^128833144 is an apocalyptic number.

It is an amenable number.

128833144 is an abundant number, since it is smaller than the sum of its proper divisors (135545096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128833144 is a wasteful number, since it uses less digits than its factorization.

128833144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4771 (or 4767 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 128833144 is about 11350.4688889931. The cubic root of 128833144 is about 505.0594891197.

The spelling of 128833144 in words is "one hundred twenty-eight million, eight hundred thirty-three thousand, one hundred forty-four".