128901255 has 48 divisors (see below), whose sum is σ = 244537344. Its totient is φ = 56738880.

The previous prime is 128901217. The next prime is 128901257. The reversal of 128901255 is 552109821.

It is not a de Polignac number, because 128901255 - 2¹⁰ = 128900231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128901257) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 647646 + ... + 647844.

It is an arithmetic number, because the mean of its divisors is an integer number (5094528).

Almost surely, 2^128901255 is an apocalyptic number.

128901255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128901255 is a deficient number, since it is larger than the sum of its proper divisors (115636089).

128901255 is an equidigital number, since it uses as much as digits as its factorization.

128901255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 128901255 is about 11353.4688531743. The cubic root of 128901255 is about 505.1484777278.

The spelling of 128901255 in words is "one hundred twenty-eight million, nine hundred one thousand, two hundred fifty-five".