128328283 has 8 divisors (see below), whose sum is σ = 131545152. Its totient is φ = 125131776.

The previous prime is 128328281. The next prime is 128328287. The reversal of 128328283 is 382823821.

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 128328283 - 2¹ = 128328281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128328281) 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, 8091 + ... + 17947.

It is an arithmetic number, because the mean of its divisors is an integer number (16443144).

Almost surely, 2^128328283 is an apocalyptic number.

128328283 is a deficient number, since it is larger than the sum of its proper divisors (3216869).

128328283 is an equidigital number, since it uses as much as digits as its factorization.

128328283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10181.

The product of its digits is 36864, while the sum is 37.

The square root of 128328283 is about 11328.2074045279. The cubic root of 128328283 is about 504.3988965910.

It can be divided in two parts, 12832 and 8283, that added together give a triangular number (21115 = T₂₀₅).

The spelling of 128328283 in words is "one hundred twenty-eight million, three hundred twenty-eight thousand, two hundred eighty-three".