13539224 has 16 divisors (see below), whose sum is σ = 25467720. Its totient is φ = 6747840.

The previous prime is 13539223. The next prime is 13539241. The reversal of 13539224 is 42293531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13539223) 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, 92 + ... + 5204.

Almost surely, 2^13539224 is an apocalyptic number.

It is an amenable number.

13539224 is a deficient number, since it is larger than the sum of its proper divisors (11928496).

13539224 is a wasteful number, since it uses less digits than its factorization.

13539224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5450 (or 5446 counting only the distinct ones).

The product of its digits is 6480, while the sum is 29.

The square root of 13539224 is about 3679.5684529575. The cubic root of 13539224 is about 238.3405430304.

The spelling of 13539224 in words is "thirteen million, five hundred thirty-nine thousand, two hundred twenty-four".