13263443 has 8 divisors (see below), whose sum is σ = 13881216. Its totient is φ = 12657600.

The previous prime is 13263407. The next prime is 13263449. The reversal of 13263443 is 34436231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13263443 - 2⁶ = 13263379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13263449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 668 + ... + 5193.

It is an arithmetic number, because the mean of its divisors is an integer number (1735152).

Almost surely, 2^13263443 is an apocalyptic number.

13263443 is a deficient number, since it is larger than the sum of its proper divisors (617773).

13263443 is an equidigital number, since it uses as much as digits as its factorization.

13263443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5965.

The product of its digits is 5184, while the sum is 26.

The square root of 13263443 is about 3641.9010145802. The cubic root of 13263443 is about 236.7111734939.

Adding to 13263443 its reverse (34436231), we get a palindrome (47699674).

The spelling of 13263443 in words is "thirteen million, two hundred sixty-three thousand, four hundred forty-three".