128325329 has 8 divisors (see below), whose sum is σ = 141963840. Its totient is φ = 115015600.

The previous prime is 128325311. The next prime is 128325359. The reversal of 128325329 is 923523821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128325329 - 2¹⁶ = 128259793 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (128325359) 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, 81374 + ... + 82935.

It is an arithmetic number, because the mean of its divisors is an integer number (17745480).

Almost surely, 2^128325329 is an apocalyptic number.

It is an amenable number.

128325329 is a deficient number, since it is larger than the sum of its proper divisors (13638511).

128325329 is a wasteful number, since it uses less digits than its factorization.

128325329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164391.

The product of its digits is 25920, while the sum is 35.

The square root of 128325329 is about 11328.0770212777. The cubic root of 128325329 is about 504.3950262938.

The spelling of 128325329 in words is "one hundred twenty-eight million, three hundred twenty-five thousand, three hundred twenty-nine".