11143641 has 8 divisors (see below), whose sum is σ = 15080224. Its totient is φ = 7318080.

The previous prime is 11143631. The next prime is 11143667. The reversal of 11143641 is 14634111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11143641 - 2¹⁰ = 11142617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11143631) 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, 27520 + ... + 27921.

It is an arithmetic number, because the mean of its divisors is an integer number (1885028).

Almost surely, 2^11143641 is an apocalyptic number.

It is an amenable number.

11143641 is a deficient number, since it is larger than the sum of its proper divisors (3936583).

11143641 is an equidigital number, since it uses as much as digits as its factorization.

11143641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55511.

The product of its digits is 288, while the sum is 21.

The square root of 11143641 is about 3338.2092504815. The cubic root of 11143641 is about 223.3618703170.

Adding to 11143641 its reverse (14634111), we get a palindrome (25777752).

The spelling of 11143641 in words is "eleven million, one hundred forty-three thousand, six hundred forty-one".