1322543 has 2 divisors, whose sum is σ = 1322544. Its totient is φ = 1322542.

The previous prime is 1322527. The next prime is 1322557. The reversal of 1322543 is 3452231.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1322543 - 2⁴ = 1322527 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1322593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661271 + 661272.

It is an arithmetic number, because the mean of its divisors is an integer number (661272).

2^1322543 is an apocalyptic number.

1322543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322543 is an equidigital number, since it uses as much as digits as its factorization.

1322543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 20.

The square root of 1322543 is about 1150.0186955002. The cubic root of 1322543 is about 109.7665296129.

Adding to 1322543 its reverse (3452231), we get a palindrome (4774774).

The spelling of 1322543 in words is "one million, three hundred twenty-two thousand, five hundred forty-three".