128345185 has 8 divisors (see below), whose sum is σ = 154089216. Its totient is φ = 102626160.

The previous prime is 128345183. The next prime is 128345201. The reversal of 128345185 is 581543821.

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

It is not a de Polignac number, because 128345185 - 2¹ = 128345183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128345183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8002 + ... + 17908.

It is an arithmetic number, because the mean of its divisors is an integer number (19261152).

Almost surely, 2^128345185 is an apocalyptic number.

It is an amenable number.

128345185 is a deficient number, since it is larger than the sum of its proper divisors (25744031).

128345185 is an equidigital number, since it uses as much as digits as its factorization.

128345185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12503.

The product of its digits is 38400, while the sum is 37.

The square root of 128345185 is about 11328.9533938489. The cubic root of 128345185 is about 504.4210402569.

The spelling of 128345185 in words is "one hundred twenty-eight million, three hundred forty-five thousand, one hundred eighty-five".