128292255 has 120 divisors (see below), whose sum is σ = 287925792. Its totient is φ = 53218944.

The previous prime is 128292233. The next prime is 128292299. The reversal of 128292255 is 552292821.

It is not a de Polignac number, because 128292255 - 2⁵ = 128292223 is a prime.

It is a congruent number.

It is an unprimeable number.

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 119 ways as a sum of consecutive naturals, for example, 2174416 + ... + 2174474.

Almost surely, 2^128292255 is an apocalyptic number.

128292255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128292255 is an abundant number, since it is smaller than the sum of its proper divisors (159633537).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128292255 is an equidigital number, since it uses as much as digits as its factorization.

128292255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 87 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 128292255 is about 11326.6171030895. The cubic root of 128292255 is about 504.3516890596.

The spelling of 128292255 in words is "one hundred twenty-eight million, two hundred ninety-two thousand, two hundred fifty-five".