11128755 has 16 divisors (see below), whose sum is σ = 19425024. Its totient is φ = 5395680.

The previous prime is 11128739. The next prime is 11128759. The reversal of 11128755 is 55782111.

11128755 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11128755 - 2⁴ = 11128739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11128759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33559 + ... + 33888.

It is an arithmetic number, because the mean of its divisors is an integer number (1214064).

Almost surely, 2^11128755 is an apocalyptic number.

11128755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11128755 is a deficient number, since it is larger than the sum of its proper divisors (8296269).

11128755 is a wasteful number, since it uses less digits than its factorization.

11128755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67466.

The product of its digits is 2800, while the sum is 30.

The square root of 11128755 is about 3335.9788668395. The cubic root of 11128755 is about 223.2623682353.

The spelling of 11128755 in words is "eleven million, one hundred twenty-eight thousand, seven hundred fifty-five".