11143936 has 36 divisors (see below), whose sum is σ = 22516704. Its totient is φ = 5504000.

The previous prime is 11143933. The next prime is 11143949. The reversal of 11143936 is 63934111.

It is not an unprimeable number, because it can be changed into a prime (11143931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25641 + ... + 26071.

It is an arithmetic number, because the mean of its divisors is an integer number (625464).

Almost surely, 2^11143936 is an apocalyptic number.

11143936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11143936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11258352).

11143936 is an abundant number, since it is smaller than the sum of its proper divisors (11372768).

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

11143936 is an equidigital number, since it uses as much as digits as its factorization.

With its predecessor (11143935) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (548).

11143936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548 (or 534 counting only the distinct ones).

The product of its digits is 1944, while the sum is 28.

The square root of 11143936 is about 3338.2534355558. The cubic root of 11143936 is about 223.3638412817.

It can be divided in two parts, 1114 and 3936, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 11143936 in words is "eleven million, one hundred forty-three thousand, nine hundred thirty-six".