128323583 has 8 divisors (see below), whose sum is σ = 131609280. Its totient is φ = 125061120.

The previous prime is 128323553. The next prime is 128323597. The reversal of 128323583 is 385323821.

It is a Cunningham number, because it is equal to 11328²-1.

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 128323583 - 2⁶ = 128323519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128323513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5663 + ... + 16991.

It is an arithmetic number, because the mean of its divisors is an integer number (16451160).

Almost surely, 2^128323583 is an apocalyptic number.

128323583 is a deficient number, since it is larger than the sum of its proper divisors (3285697).

128323583 is a wasteful number, since it uses less digits than its factorization.

128323583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11617.

The product of its digits is 34560, while the sum is 35.

The square root of 128323583 is about 11327.9999558616. Note that the first 4 decimals coincide. The cubic root of 128323583 is about 504.3927386766.

The spelling of 128323583 in words is "one hundred twenty-eight million, three hundred twenty-three thousand, five hundred eighty-three".