13643103 has 4 divisors (see below), whose sum is σ = 18190808. Its totient is φ = 9095400.

The previous prime is 13643099. The next prime is 13643107. The reversal of 13643103 is 30134631.

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 (13643099) and next prime (13643107).

It is not a de Polignac number, because 13643103 - 2² = 13643099 is a prime.

It is a super-2 number, since 2×13643103² = 372268518937218, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13643103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13643107) 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, 2273848 + ... + 2273853.

It is an arithmetic number, because the mean of its divisors is an integer number (4547702).

Almost surely, 2^13643103 is an apocalyptic number.

13643103 is a deficient number, since it is larger than the sum of its proper divisors (4547705).

13643103 is an equidigital number, since it uses as much as digits as its factorization.

13643103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4547704.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 13643103 is about 3693.6571308122. The cubic root of 13643103 is about 238.9485425770.

Adding to 13643103 its reverse (30134631), we get a palindrome (43777734).

The spelling of 13643103 in words is "thirteen million, six hundred forty-three thousand, one hundred three".