11147943 has 4 divisors (see below), whose sum is σ = 14863928. Its totient is φ = 7431960.

The previous prime is 11147921. The next prime is 11147953. The reversal of 11147943 is 34974111.

11147943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34974111 = 3 ⋅11658037.

It is not a de Polignac number, because 11147943 - 2⁵ = 11147911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11147943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11147953) 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, 1857988 + ... + 1857993.

It is an arithmetic number, because the mean of its divisors is an integer number (3715982).

Almost surely, 2^11147943 is an apocalyptic number.

11147943 is a deficient number, since it is larger than the sum of its proper divisors (3715985).

11147943 is an equidigital number, since it uses as much as digits as its factorization.

11147943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715984.

The product of its digits is 3024, while the sum is 30.

The square root of 11147943 is about 3338.8535457549. The cubic root of 11147943 is about 223.3906095516.

It can be divided in two parts, 11147 and 943, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 11147943 in words is "eleven million, one hundred forty-seven thousand, nine hundred forty-three".