13728201 has 4 divisors (see below), whose sum is σ = 18304272. Its totient is φ = 9152132.

The previous prime is 13728193. The next prime is 13728229. The reversal of 13728201 is 10282731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13728201 - 2³ = 13728193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13728251) 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, 2288031 + ... + 2288036.

It is an arithmetic number, because the mean of its divisors is an integer number (4576068).

Almost surely, 2^13728201 is an apocalyptic number.

It is an amenable number.

13728201 is a deficient number, since it is larger than the sum of its proper divisors (4576071).

13728201 is an equidigital number, since it uses as much as digits as its factorization.

13728201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4576070.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 13728201 is about 3705.1587010545. The cubic root of 13728201 is about 239.4443220569. Note that the first 3 decimals are identical.

The spelling of 13728201 in words is "thirteen million, seven hundred twenty-eight thousand, two hundred one".