11213144 has 32 divisors (see below), whose sum is σ = 22140000. Its totient is φ = 5313792.

The previous prime is 11213143. The next prime is 11213159. The reversal of 11213144 is 44131211.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11213141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27212 + ... + 27620.

It is an arithmetic number, because the mean of its divisors is an integer number (691875).

Almost surely, 2^11213144 is an apocalyptic number.

It is an amenable number.

11213144 is a deficient number, since it is larger than the sum of its proper divisors (10926856).

11213144 is a wasteful number, since it uses less digits than its factorization.

11213144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587 (or 583 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 11213144 is about 3348.6032909259. The cubic root of 11213144 is about 223.8252782920.

Adding to 11213144 its reverse (44131211), we get a palindrome (55344355).

The spelling of 11213144 in words is "eleven million, two hundred thirteen thousand, one hundred forty-four".