13244047 has 4 divisors (see below), whose sum is σ = 13310800. Its totient is φ = 13177296.

The previous prime is 13244027. The next prime is 13244051. The reversal of 13244047 is 74044231.

13244047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13244047 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 (13244027) 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, 33078 + ... + 33475.

It is an arithmetic number, because the mean of its divisors is an integer number (3327700).

Almost surely, 2^13244047 is an apocalyptic number.

13244047 is a deficient number, since it is larger than the sum of its proper divisors (66753).

13244047 is an equidigital number, since it uses as much as digits as its factorization.

13244047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66752.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 13244047 is about 3639.2371453369. The cubic root of 13244047 is about 236.5957311268.

Adding to 13244047 its reverse (74044231), we get a palindrome (87288278).

The spelling of 13244047 in words is "thirteen million, two hundred forty-four thousand, forty-seven".