1143047 has 2 divisors, whose sum is σ = 1143048. Its totient is φ = 1143046.

The previous prime is 1143019. The next prime is 1143049. The reversal of 1143047 is 7403411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1143047 - 2¹⁴ = 1126663 is a prime.

Together with 1143049, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571523 + 571524.

It is an arithmetic number, because the mean of its divisors is an integer number (571524).

2^1143047 is an apocalyptic number.

1143047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143047 is an equidigital number, since it uses as much as digits as its factorization.

1143047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 1143047 is about 1069.1337615098. The cubic root of 1143047 is about 104.5573809388.

Adding to 1143047 its reverse (7403411), we get a palindrome (8546458).

The spelling of 1143047 in words is "one million, one hundred forty-three thousand, forty-seven".