128545832 has 16 divisors (see below), whose sum is σ = 241213140. Its totient is φ = 64222336.

The previous prime is 128545819. The next prime is 128545843. The reversal of 128545832 is 238545821.

It can be written as a sum of positive squares in 2 ways, for example, as 126922756 + 1623076 = 11266^2 + 1274^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5858 + ... + 17070.

Almost surely, 2^128545832 is an apocalyptic number.

It is an amenable number.

128545832 is a deficient number, since it is larger than the sum of its proper divisors (112667308).

128545832 is a wasteful number, since it uses less digits than its factorization.

128545832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12652 (or 12648 counting only the distinct ones).

The product of its digits is 76800, while the sum is 38.

The square root of 128545832 is about 11337.8054313875. The cubic root of 128545832 is about 504.6837637140.

The spelling of 128545832 in words is "one hundred twenty-eight million, five hundred forty-five thousand, eight hundred thirty-two".