1284043 has 2 divisors, whose sum is σ = 1284044. Its totient is φ = 1284042.

The previous prime is 1284037. The next prime is 1284047. The reversal of 1284043 is 3404821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1284043 - 2¹³ = 1275851 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1284047) 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, 642021 + 642022.

It is an arithmetic number, because the mean of its divisors is an integer number (642022).

2^1284043 is an apocalyptic number.

1284043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1284043 is an equidigital number, since it uses as much as digits as its factorization.

1284043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1284043 is about 1133.1562116496. The cubic root of 1284043 is about 108.6909010816.

Adding to 1284043 its reverse (3404821), we get a palindrome (4688864).

The spelling of 1284043 in words is "one million, two hundred eighty-four thousand, forty-three".