13047227 has 4 divisors (see below), whose sum is σ = 13057200. Its totient is φ = 13037256.

The previous prime is 13047163. The next prime is 13047239. The reversal of 13047227 is 72274031.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 72274031 = 337 ⋅214463.

It is a cyclic number.

It is not a de Polignac number, because 13047227 - 2⁶ = 13047163 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13047196 and 13047205.

It is not an unprimeable number, because it can be changed into a prime (13047257) 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, 2663 + ... + 5760.

It is an arithmetic number, because the mean of its divisors is an integer number (3264300).

Almost surely, 2^13047227 is an apocalyptic number.

13047227 is a deficient number, since it is larger than the sum of its proper divisors (9973).

13047227 is an equidigital number, since it uses as much as digits as its factorization.

13047227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9972.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 13047227 is about 3612.0945447206. The cubic root of 13047227 is about 235.4178592399.

The spelling of 13047227 in words is "thirteen million, forty-seven thousand, two hundred twenty-seven".