13728103 has 4 divisors (see below), whose sum is σ = 13789888. Its totient is φ = 13666320.

The previous prime is 13728101. The next prime is 13728109. The reversal of 13728103 is 30182731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30182731 = 337 ⋅89563.

It is a cyclic number.

It is not a de Polignac number, because 13728103 - 2¹ = 13728101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13728101) 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, 30558 + ... + 31003.

It is an arithmetic number, because the mean of its divisors is an integer number (3447472).

Almost surely, 2^13728103 is an apocalyptic number.

13728103 is a deficient number, since it is larger than the sum of its proper divisors (61785).

13728103 is an equidigital number, since it uses as much as digits as its factorization.

13728103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61784.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 13728103 is about 3705.1454762263. The cubic root of 13728103 is about 239.4437522906.

It can be divided in two parts, 13728 and 103, that added together give a palindrome (13831).

The spelling of 13728103 in words is "thirteen million, seven hundred twenty-eight thousand, one hundred three".