13335144 has 32 divisors (see below), whose sum is σ = 33839520. Its totient is φ = 4378176.

The previous prime is 13335139. The next prime is 13335151. The reversal of 13335144 is 44153331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2539 + ... + 5754.

It is an arithmetic number, because the mean of its divisors is an integer number (1057485).

Almost surely, 2^13335144 is an apocalyptic number.

It is an amenable number.

13335144 is an abundant number, since it is smaller than the sum of its proper divisors (20504376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13335144 is a wasteful number, since it uses less digits than its factorization.

13335144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8369 (or 8365 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 13335144 is about 3651.7316440286. The cubic root of 13335144 is about 237.1369537271.

Adding to 13335144 its reverse (44153331), we get a palindrome (57488475).

The spelling of 13335144 in words is "thirteen million, three hundred thirty-five thousand, one hundred forty-four".