11143805 has 8 divisors (see below), whose sum is σ = 13561344. Its totient is φ = 8789200.

The previous prime is 11143733. The next prime is 11143817. The reversal of 11143805 is 50834111.

11143805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11143805 - 2¹⁴ = 11127421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15341 + ... + 16050.

It is an arithmetic number, because the mean of its divisors is an integer number (1695168).

Almost surely, 2^11143805 is an apocalyptic number.

It is an amenable number.

11143805 is a deficient number, since it is larger than the sum of its proper divisors (2417539).

11143805 is an equidigital number, since it uses as much as digits as its factorization.

11143805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31467.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 11143805 is about 3338.2338144594. The cubic root of 11143805 is about 223.3629660440.

Adding to 11143805 its reverse (50834111), we get a palindrome (61977916).

The spelling of 11143805 in words is "eleven million, one hundred forty-three thousand, eight hundred five".