13544 has 8 divisors (see below), whose sum is σ = 25410. Its totient is φ = 6768.

The previous prime is 13537. The next prime is 13553. The reversal of 13544 is 44531.

13544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12100 + 1444 = 110^2 + 38^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

13544 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 839 + ... + 854.

2¹³⁵⁴⁴ is an apocalyptic number.

It is an amenable number.

13544 is a deficient number, since it is larger than the sum of its proper divisors (11866).

13544 is a wasteful number, since it uses less digits than its factorization.

13544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699 (or 1695 counting only the distinct ones).

The product of its digits is 240, while the sum is 17.

The square root of 13544 is about 116.3786922078. The cubic root of 13544 is about 23.8368564839.

The spelling of 13544 in words is "thirteen thousand, five hundred forty-four".