128225184 has 48 divisors (see below), whose sum is σ = 351231552. Its totient is φ = 40882688.

The previous prime is 128225171. The next prime is 128225189. The reversal of 128225184 is 481522821.

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

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (128225189) 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, 26829 + ... + 31244.

It is an arithmetic number, because the mean of its divisors is an integer number (7317324).

Almost surely, 2^128225184 is an apocalyptic number.

It is an amenable number.

128225184 is an abundant number, since it is smaller than the sum of its proper divisors (223006368).

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

128225184 is a wasteful number, since it uses less digits than its factorization.

128225184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58109 (or 58101 counting only the distinct ones).

The product of its digits is 10240, while the sum is 33.

The square root of 128225184 is about 11323.6559467338. The cubic root of 128225184 is about 504.2637823011.

The spelling of 128225184 in words is "one hundred twenty-eight million, two hundred twenty-five thousand, one hundred eighty-four".