11143147 has 2 divisors, whose sum is σ = 11143148. Its totient is φ = 11143146.

The previous prime is 11143127. The next prime is 11143157. The reversal of 11143147 is 74134111.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (74134111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11143147 - 2⁷ = 11143019 is a prime.

It is not a weakly prime, because it can be changed into another prime (11143127) 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 as a sum of consecutive naturals, namely, 5571573 + 5571574.

It is an arithmetic number, because the mean of its divisors is an integer number (5571574).

Almost surely, 2^11143147 is an apocalyptic number.

11143147 is a deficient number, since it is larger than the sum of its proper divisors (1).

11143147 is an equidigital number, since it uses as much as digits as its factorization.

11143147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336, while the sum is 22.

The square root of 11143147 is about 3338.1352578947. The cubic root of 11143147 is about 223.3585697083.

Adding to 11143147 its reverse (74134111), we get a palindrome (85277258).

The spelling of 11143147 in words is "eleven million, one hundred forty-three thousand, one hundred forty-seven".