1147843 has 2 divisors, whose sum is σ = 1147844. Its totient is φ = 1147842.

The previous prime is 1147841. The next prime is 1147889. The reversal of 1147843 is 3487411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1147843 - 2¹ = 1147841 is a prime.

Together with 1147841, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1147841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573921 + 573922.

It is an arithmetic number, because the mean of its divisors is an integer number (573922).

2^1147843 is an apocalyptic number.

1147843 is a deficient number, since it is larger than the sum of its proper divisors (1).

1147843 is an equidigital number, since it uses as much as digits as its factorization.

1147843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 28.

The square root of 1147843 is about 1071.3743510090. The cubic root of 1147843 is about 104.7034109477.

The spelling of 1147843 in words is "one million, one hundred forty-seven thousand, eight hundred forty-three".