128459225 has 48 divisors (see below), whose sum is σ = 176774400. Its totient is φ = 92206080.

The previous prime is 128459207. The next prime is 128459237. The reversal of 128459225 is 522954821.

It is not a de Polignac number, because 128459225 - 2⁶ = 128459161 is a prime.

It is a Curzon number.

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 47 ways as a sum of consecutive naturals, for example, 1178471 + ... + 1178579.

It is an arithmetic number, because the mean of its divisors is an integer number (3682800).

Almost surely, 2^128459225 is an apocalyptic number.

It is an amenable number.

128459225 is a deficient number, since it is larger than the sum of its proper divisors (48315175).

128459225 is a wasteful number, since it uses less digits than its factorization.

128459225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 237 counting only the distinct ones).

The product of its digits is 57600, while the sum is 38.

The square root of 128459225 is about 11333.9853979084. The cubic root of 128459225 is about 504.5703956750.

The spelling of 128459225 in words is "one hundred twenty-eight million, four hundred fifty-nine thousand, two hundred twenty-five".