13344281 has 4 divisors (see below), whose sum is σ = 13352064. Its totient is φ = 13336500.

The previous prime is 13344277. The next prime is 13344307. The reversal of 13344281 is 18244331.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13344281 - 2² = 13344277 is a prime.

It is a super-2 number, since 2×13344281² = 356139670813922, 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 13344281.

It is not an unprimeable number, because it can be changed into a prime (13344241) 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, 65 + ... + 5166.

It is an arithmetic number, because the mean of its divisors is an integer number (3338016).

Almost surely, 2^13344281 is an apocalyptic number.

It is an amenable number.

13344281 is a deficient number, since it is larger than the sum of its proper divisors (7783).

13344281 is an equidigital number, since it uses as much as digits as its factorization.

13344281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7782.

The product of its digits is 2304, while the sum is 26.

The square root of 13344281 is about 3652.9824801113. The cubic root of 13344281 is about 237.1911020154.

The spelling of 13344281 in words is "thirteen million, three hundred forty-four thousand, two hundred eighty-one".