13224871 has 4 divisors (see below), whose sum is σ = 14427144. Its totient is φ = 12022600.

The previous prime is 13224863. The next prime is 13224881. The reversal of 13224871 is 17842231.

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

It is a cyclic number.

It is not a de Polignac number, because 13224871 - 2³ = 13224863 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 (13224821) 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, 601120 + ... + 601141.

It is an arithmetic number, because the mean of its divisors is an integer number (3606786).

Almost surely, 2^13224871 is an apocalyptic number.

13224871 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13224871 is a deficient number, since it is larger than the sum of its proper divisors (1202273).

13224871 is a wasteful number, since it uses less digits than its factorization.

13224871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202272.

The product of its digits is 2688, while the sum is 28.

The square root of 13224871 is about 3636.6015728974. The cubic root of 13224871 is about 236.4814873163.

The spelling of 13224871 in words is "thirteen million, two hundred twenty-four thousand, eight hundred seventy-one".