1244563 has 4 divisors (see below), whose sum is σ = 1250368. Its totient is φ = 1238760.

The previous prime is 1244543. The next prime is 1244567. The reversal of 1244563 is 3654421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1244563 - 2⁵ = 1244531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244567) 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 in 3 ways as a sum of consecutive naturals, for example, 2568 + ... + 3013.

It is an arithmetic number, because the mean of its divisors is an integer number (312592).

2^1244563 is an apocalyptic number.

1244563 is a deficient number, since it is larger than the sum of its proper divisors (5805).

1244563 is an equidigital number, since it uses as much as digits as its factorization.

1244563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5804.

The product of its digits is 2880, while the sum is 25.

The square root of 1244563 is about 1115.5998386518. The cubic root of 1244563 is about 107.5653253574.

Adding to 1244563 its reverse (3654421), we get a palindrome (4898984).

The spelling of 1244563 in words is "one million, two hundred forty-four thousand, five hundred sixty-three".