1323563 has 4 divisors (see below), whose sum is σ = 1341768. Its totient is φ = 1305360.

The previous prime is 1323551. The next prime is 1323571. The reversal of 1323563 is 3653231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3653231 = 1327 ⋅2753.

It is a cyclic number.

It is not a de Polignac number, because 1323563 - 2⁶ = 1323499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8993 + ... + 9138.

It is an arithmetic number, because the mean of its divisors is an integer number (335442).

2^1323563 is an apocalyptic number.

1323563 is a deficient number, since it is larger than the sum of its proper divisors (18205).

1323563 is an equidigital number, since it uses as much as digits as its factorization.

1323563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18204.

The product of its digits is 1620, while the sum is 23.

The square root of 1323563 is about 1150.4620810787. The cubic root of 1323563 is about 109.7947411945.

Adding to 1323563 its reverse (3653231), we get a palindrome (4976794).

The spelling of 1323563 in words is "one million, three hundred twenty-three thousand, five hundred sixty-three".