11543144 has 16 divisors (see below), whose sum is σ = 21725700. Its totient is φ = 5749632.

The previous prime is 11543143. The next prime is 11543159. The reversal of 11543144 is 44134511.

It can be written as a sum of positive squares in 2 ways, for example, as 11303044 + 240100 = 3362^2 + 490^2 .

It is not an unprimeable number, because it can be changed into a prime (11543143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389 + ... + 4820.

Almost surely, 2^11543144 is an apocalyptic number.

It is an amenable number.

11543144 is a deficient number, since it is larger than the sum of its proper divisors (10182556).

11543144 is a wasteful number, since it uses less digits than its factorization.

11543144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5492 (or 5488 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 11543144 is about 3397.5202721985. The cubic root of 11543144 is about 225.9997911607. Note that the first 3 decimals are identical.

Adding to 11543144 its reverse (44134511), we get a palindrome (55677655).

The spelling of 11543144 in words is "eleven million, five hundred forty-three thousand, one hundred forty-four".