128875306 has 8 divisors (see below), whose sum is σ = 220929120. Its totient is φ = 55232268.

The previous prime is 128875303. The next prime is 128875319. The reversal of 128875306 is 603578821.

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

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (128875303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4602676 + ... + 4602703.

It is an arithmetic number, because the mean of its divisors is an integer number (27616140).

Almost surely, 2^128875306 is an apocalyptic number.

128875306 is a deficient number, since it is larger than the sum of its proper divisors (92053814).

128875306 is an equidigital number, since it uses as much as digits as its factorization.

128875306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9205388.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 128875306 is about 11352.3260171649. The cubic root of 128875306 is about 505.1145784521.

The spelling of 128875306 in words is "one hundred twenty-eight million, eight hundred seventy-five thousand, three hundred six".