128065120 has 24 divisors (see below), whose sum is σ = 302554224. Its totient is φ = 51225984.

The previous prime is 128065033. The next prime is 128065121. The reversal of 128065120 is 21560821.

It is a super-2 number, since 2×128065120² = 32801349921228800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128065121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400044 + ... + 400363.

It is an arithmetic number, because the mean of its divisors is an integer number (12606426).

Almost surely, 2^128065120 is an apocalyptic number.

128065120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128065120 is an abundant number, since it is smaller than the sum of its proper divisors (174489104).

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

128065120 is an equidigital number, since it uses as much as digits as its factorization.

128065120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800422 (or 800414 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 128065120 is about 11316.5860576412. The cubic root of 128065120 is about 504.0538701132.

The spelling of 128065120 in words is "one hundred twenty-eight million, sixty-five thousand, one hundred twenty".