11143807 has 4 divisors (see below), whose sum is σ = 11157640. Its totient is φ = 11129976.

The previous prime is 11143733. The next prime is 11143817. The reversal of 11143807 is 70834111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11143807 - 2⁷ = 11143679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11143817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5628 + ... + 7345.

It is an arithmetic number, because the mean of its divisors is an integer number (2789410).

Almost surely, 2^11143807 is an apocalyptic number.

11143807 is a deficient number, since it is larger than the sum of its proper divisors (13833).

11143807 is an equidigital number, since it uses as much as digits as its factorization.

11143807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13832.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 11143807 is about 3338.2341140190. The cubic root of 11143807 is about 223.3629794065.

Adding to 11143807 its reverse (70834111), we get a palindrome (81977918).

The spelling of 11143807 in words is "eleven million, one hundred forty-three thousand, eight hundred seven".