1243163 has 4 divisors (see below), whose sum is σ = 1276800. Its totient is φ = 1209528.

The previous prime is 1243157. The next prime is 1243169. The reversal of 1243163 is 3613421.

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

It is an interprime number because it is at equal distance from previous prime (1243157) and next prime (1243169).

It is a cyclic number.

It is not a de Polignac number, because 1243163 - 2⁴ = 1243147 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (1243169) 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 in 3 ways as a sum of consecutive naturals, for example, 16763 + ... + 16836.

It is an arithmetic number, because the mean of its divisors is an integer number (319200).

2^1243163 is an apocalyptic number.

1243163 is a deficient number, since it is larger than the sum of its proper divisors (33637).

1243163 is an equidigital number, since it uses as much as digits as its factorization.

1243163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33636.

The product of its digits is 432, while the sum is 20.

The square root of 1243163 is about 1114.9721969628. The cubic root of 1243163 is about 107.5249770699.

Adding to 1243163 its reverse (3613421), we get a palindrome (4856584).

The spelling of 1243163 in words is "one million, two hundred forty-three thousand, one hundred sixty-three".