11143924 has 24 divisors (see below), whose sum is σ = 21385728. Its totient is φ = 5039040.

The previous prime is 11143921. The next prime is 11143931. The reversal of 11143924 is 42934111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11143921) 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, 9709 + ... + 10795.

It is an arithmetic number, because the mean of its divisors is an integer number (891072).

Almost surely, 2^11143924 is an apocalyptic number.

It is an amenable number.

11143924 is a deficient number, since it is larger than the sum of its proper divisors (10241804).

11143924 is a wasteful number, since it uses less digits than its factorization.

11143924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335 (or 1333 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

The square root of 11143924 is about 3338.2516382082. The cubic root of 11143924 is about 223.3637611076.

The spelling of 11143924 in words is "eleven million, one hundred forty-three thousand, nine hundred twenty-four".