1243367 has 2 divisors, whose sum is σ = 1243368. Its totient is φ = 1243366.

The previous prime is 1243349. The next prime is 1243369. The reversal of 1243367 is 7633421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1243367 - 2⁸ = 1243111 is a prime.

It is a super-2 number, since 2×1243367² = 3091922993378, which contains 22 as substring.

Together with 1243369, 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 (1243369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621683 + 621684.

It is an arithmetic number, because the mean of its divisors is an integer number (621684).

2^1243367 is an apocalyptic number.

1243367 is a deficient number, since it is larger than the sum of its proper divisors (1).

1243367 is an equidigital number, since it uses as much as digits as its factorization.

1243367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 26.

The square root of 1243367 is about 1115.0636753119. The cubic root of 1243367 is about 107.5308582766.

Adding to 1243367 its reverse (7633421), we get a palindrome (8876788).

The spelling of 1243367 in words is "one million, two hundred forty-three thousand, three hundred sixty-seven".