128943359 has 8 divisors (see below), whose sum is σ = 134732160. Its totient is φ = 123169816.

The previous prime is 128943349. The next prime is 128943383. The reversal of 128943359 is 953349821.

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 128943359 - 2⁴ = 128943343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128943349) 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, 15632 + ... + 22410.

It is an arithmetic number, because the mean of its divisors is an integer number (16841520).

Almost surely, 2^128943359 is an apocalyptic number.

128943359 is a deficient number, since it is larger than the sum of its proper divisors (5788801).

128943359 is an equidigital number, since it uses as much as digits as its factorization.

128943359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7629.

The product of its digits is 233280, while the sum is 44.

The square root of 128943359 is about 11355.3229368433. The cubic root of 128943359 is about 505.2034719071.

The spelling of 128943359 in words is "one hundred twenty-eight million, nine hundred forty-three thousand, three hundred fifty-nine".