128233056 has 48 divisors (see below), whose sum is σ = 384701184. Its totient is φ = 36637824.

The previous prime is 128233051. The next prime is 128233067. The reversal of 128233056 is 650332821.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128233051) 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, 94740 + ... + 96083.

It is an arithmetic number, because the mean of its divisors is an integer number (8014608).

Almost surely, 2^128233056 is an apocalyptic number.

128233056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

128233056 is an abundant number, since it is smaller than the sum of its proper divisors (256468128).

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

128233056 is a wasteful number, since it uses less digits than its factorization.

128233056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190843 (or 190835 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 128233056 is about 11324.0035323202. The cubic root of 128233056 is about 504.2741013434.

Adding to 128233056 its reverse (650332821), we get a palindrome (778565877).

The spelling of 128233056 in words is "one hundred twenty-eight million, two hundred thirty-three thousand, fifty-six".