128814128 has 40 divisors (see below), whose sum is σ = 257327280. Its totient is φ = 62428160.

The previous prime is 128814109. The next prime is 128814139. The reversal of 128814128 is 821418821.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

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 7 ways as a sum of consecutive naturals, for example, 116876 + ... + 117972.

It is an arithmetic number, because the mean of its divisors is an integer number (6433182).

Almost surely, 2^128814128 is an apocalyptic number.

It is an amenable number.

128814128 is a deficient number, since it is larger than the sum of its proper divisors (128513152).

128814128 is a wasteful number, since it uses less digits than its factorization.

128814128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325 (or 1319 counting only the distinct ones).

The product of its digits is 8192, while the sum is 35.

The square root of 128814128 is about 11349.6311834350. The cubic root of 128814128 is about 505.0346386723.

The spelling of 128814128 in words is "one hundred twenty-eight million, eight hundred fourteen thousand, one hundred twenty-eight".