128292875 has 16 divisors (see below), whose sum is σ = 164442720. Its totient is φ = 99856800.

The previous prime is 128292859. The next prime is 128292887. The reversal of 128292875 is 578292821.

It is not a de Polignac number, because 128292875 - 2⁴ = 128292859 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9245 + ... + 18494.

It is an arithmetic number, because the mean of its divisors is an integer number (10277670).

Almost surely, 2^128292875 is an apocalyptic number.

128292875 is a deficient number, since it is larger than the sum of its proper divisors (36149845).

128292875 is an equidigital number, since it uses as much as digits as its factorization.

128292875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27791 (or 27781 counting only the distinct ones).

The product of its digits is 161280, while the sum is 44.

The square root of 128292875 is about 11326.6444722168. The cubic root of 128292875 is about 504.3525015211.

The spelling of 128292875 in words is "one hundred twenty-eight million, two hundred ninety-two thousand, eight hundred seventy-five".