1304243 has 2 divisors, whose sum is σ = 1304244. Its totient is φ = 1304242.

The previous prime is 1304239. The next prime is 1304249. The reversal of 1304243 is 3424031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1304243 - 2² = 1304239 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 1 + 3² + 0 + 4⁸ + 2¹⁷ + 4¹⁰ + 3¹⁰ .

It is not a weakly prime, because it can be changed into another prime (1304249) 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, 652121 + 652122.

It is an arithmetic number, because the mean of its divisors is an integer number (652122).

2^1304243 is an apocalyptic number.

1304243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304243 is an equidigital number, since it uses as much as digits as its factorization.

1304243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1304243 is about 1142.0345879175. The cubic root of 1304243 is about 109.2578973078.

Adding to 1304243 its reverse (3424031), we get a palindrome (4728274).

The spelling of 1304243 in words is "one million, three hundred four thousand, two hundred forty-three".