128876055 has 32 divisors (see below), whose sum is σ = 257084928. Its totient is φ = 53558400.

The previous prime is 128876023. The next prime is 128876063. The reversal of 128876055 is 550678821.

It is not a de Polignac number, because 128876055 - 2⁵ = 128876023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128875998 and 128876016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54636 + ... + 56945.

It is an arithmetic number, because the mean of its divisors is an integer number (8033904).

Almost surely, 2^128876055 is an apocalyptic number.

128876055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128876055 is a deficient number, since it is larger than the sum of its proper divisors (128208873).

128876055 is a wasteful number, since it uses less digits than its factorization.

128876055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111607.

The product of its (nonzero) digits is 134400, while the sum is 42.

The square root of 128876055 is about 11352.3590059511. The cubic root of 128876055 is about 505.1155569951.

It can be divided in two parts, 1288760 and 55, that added together give a triangular number (1288815 = T₁₆₀₅).

The spelling of 128876055 in words is "one hundred twenty-eight million, eight hundred seventy-six thousand, fifty-five".