13521344 has 14 divisors (see below), whose sum is σ = 26831544. Its totient is φ = 6760640.

The previous prime is 13521329. The next prime is 13521359. The reversal of 13521344 is 44312531.

It is an interprime number because it is at equal distance from previous prime (13521329) and next prime (13521359).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105572 + ... + 105699.

Almost surely, 2^13521344 is an apocalyptic number.

It is an amenable number.

13521344 is a deficient number, since it is larger than the sum of its proper divisors (13310200).

13521344 is an equidigital number, since it uses as much as digits as its factorization.

13521344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211283 (or 211273 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 13521344 is about 3677.1380175348. The cubic root of 13521344 is about 238.2355787129.

Adding to 13521344 its reverse (44312531), we get a palindrome (57833875).

The spelling of 13521344 in words is "thirteen million, five hundred twenty-one thousand, three hundred forty-four".