128283132 has 24 divisors (see below), whose sum is σ = 300415696. Its totient is φ = 42605568.

The previous prime is 128283131. The next prime is 128283143. The reversal of 128283132 is 231382821.

It is a super-3 number, since 3×128283132³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 128283132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128283131) 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, 15973 + ... + 22620.

Almost surely, 2^128283132 is an apocalyptic number.

128283132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128283132 is an abundant number, since it is smaller than the sum of its proper divisors (172132564).

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

128283132 is a wasteful number, since it uses less digits than its factorization.

128283132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38877 (or 38875 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 128283132 is about 11326.2143719780. The cubic root of 128283132 is about 504.3397337795.

The spelling of 128283132 in words is "one hundred twenty-eight million, two hundred eighty-three thousand, one hundred thirty-two".