128536224 has 48 divisors (see below), whose sum is σ = 346536288. Its totient is φ = 41686272.

The previous prime is 128536193. The next prime is 128536229. The reversal of 128536224 is 422635821.

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

It is not an unprimeable number, because it can be changed into a prime (128536229) 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, 14542 + ... + 21645.

It is an arithmetic number, because the mean of its divisors is an integer number (7219506).

Almost surely, 2^128536224 is an apocalyptic number.

It is an amenable number.

128536224 is an abundant number, since it is smaller than the sum of its proper divisors (218000064).

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

128536224 is a wasteful number, since it uses less digits than its factorization.

128536224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36237 (or 36229 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 128536224 is about 11337.3817083134. The cubic root of 128536224 is about 504.6711894118.

The spelling of 128536224 in words is "one hundred twenty-eight million, five hundred thirty-six thousand, two hundred twenty-four".