128045218 has 16 divisors (see below), whose sum is σ = 231059520. Its totient is φ = 51988176.

The previous prime is 128045167. The next prime is 128045219. The reversal of 128045218 is 812540821.

It is a self number, because there is not a number n which added to its sum of digits gives 128045218.

It is not an unprimeable number, because it can be changed into a prime (128045219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240421 + ... + 240952.

It is an arithmetic number, because the mean of its divisors is an integer number (14441220).

Almost surely, 2^128045218 is an apocalyptic number.

128045218 is a deficient number, since it is larger than the sum of its proper divisors (103014302).

128045218 is a wasteful number, since it uses less digits than its factorization.

128045218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481401.

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 128045218 is about 11315.7066946789. The cubic root of 128045218 is about 504.0277578774.

The spelling of 128045218 in words is "one hundred twenty-eight million, forty-five thousand, two hundred eighteen".