13244263 has 4 divisors (see below), whose sum is σ = 13365880. Its totient is φ = 13122648.

The previous prime is 13244243. The next prime is 13244281. The reversal of 13244263 is 36244231.

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 13244263 - 2⁹ = 13243751 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 (13244233) 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, 60645 + ... + 60862.

It is an arithmetic number, because the mean of its divisors is an integer number (3341470).

Almost surely, 2^13244263 is an apocalyptic number.

13244263 is a deficient number, since it is larger than the sum of its proper divisors (121617).

13244263 is a wasteful number, since it uses less digits than its factorization.

13244263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121616.

The product of its digits is 3456, while the sum is 25.

The square root of 13244263 is about 3639.2668217651. The cubic root of 13244263 is about 236.5970173499.

Adding to 13244263 its reverse (36244231), we get a palindrome (49488494).

The spelling of 13244263 in words is "thirteen million, two hundred forty-four thousand, two hundred sixty-three".