128551332 has 48 divisors (see below), whose sum is σ = 369176192. Its totient is φ = 33903360.

The previous prime is 128551309. The next prime is 128551337. The reversal of 128551332 is 233155821.

It is a self number, because there is not a number n which added to its sum of digits gives 128551332.

It is not an unprimeable number, because it can be changed into a prime (128551337) 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 15 ways as a sum of consecutive naturals, for example, 57769 + ... + 59952.

Almost surely, 2^128551332 is an apocalyptic number.

128551332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128551332 is an abundant number, since it is smaller than the sum of its proper divisors (240624860).

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

128551332 is a wasteful number, since it uses less digits than its factorization.

128551332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117748 (or 117746 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 128551332 is about 11338.0479801419. The cubic root of 128551332 is about 504.6909614609.

The spelling of 128551332 in words is "one hundred twenty-eight million, five hundred fifty-one thousand, three hundred thirty-two".