1143471843 has 8 divisors (see below), whose sum is σ = 1694032400. Its totient is φ = 762314544.

The previous prime is 1143471787. The next prime is 1143471863. The reversal of 1143471843 is 3481743411.

1143471843 is a `hidden beast` number, since 1 + 143 + 471 + 8 + 43 = 666.

It is not a de Polignac number, because 1143471843 - 2¹⁰ = 1143470819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1143471798 and 1143471807.

It is not an unprimeable number, because it can be changed into a prime (1143471863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21175378 + ... + 21175431.

It is an arithmetic number, because the mean of its divisors is an integer number (211754050).

Almost surely, 2^1143471843 is an apocalyptic number.

1143471843 is a deficient number, since it is larger than the sum of its proper divisors (550560557).

1143471843 is an equidigital number, since it uses as much as digits as its factorization.

1143471843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42350818 (or 42350812 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 1143471843 is about 33815.2605046893. The cubic root of 1143471843 is about 1045.7033315309.

The spelling of 1143471843 in words is "one billion, one hundred forty-three million, four hundred seventy-one thousand, eight hundred forty-three".