11155155 has 16 divisors (see below), whose sum is σ = 19471104. Its totient is φ = 5408480.

The previous prime is 11155139. The next prime is 11155181. The reversal of 11155155 is 55155111.

It is not a de Polignac number, because 11155155 - 2⁴ = 11155139 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33639 + ... + 33968.

It is an arithmetic number, because the mean of its divisors is an integer number (1216944).

Almost surely, 2^11155155 is an apocalyptic number.

11155155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11155155 is a deficient number, since it is larger than the sum of its proper divisors (8315949).

11155155 is a wasteful number, since it uses less digits than its factorization.

11155155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67626.

The product of its digits is 625, while the sum is 24.

The square root of 11155155 is about 3339.9333825692. The cubic root of 11155155 is about 223.4387722718.

The spelling of 11155155 in words is "eleven million, one hundred fifty-five thousand, one hundred fifty-five".