13612144 has 40 divisors (see below), whose sum is σ = 32463200. Its totient is φ = 5384448.

The previous prime is 13612141. The next prime is 13612169. The reversal of 13612144 is 44121631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13612141) 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 7 ways as a sum of consecutive naturals, for example, 3219 + ... + 6130.

It is an arithmetic number, because the mean of its divisors is an integer number (811580).

Almost surely, 2^13612144 is an apocalyptic number.

13612144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13612144 is an abundant number, since it is smaller than the sum of its proper divisors (18851056).

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

13612144 is a wasteful number, since it uses less digits than its factorization.

13612144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9377 (or 9371 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 13612144 is about 3689.4639176986. The cubic root of 13612144 is about 238.7676646013.

Adding to 13612144 its reverse (44121631), we get a palindrome (57733775).

The spelling of 13612144 in words is "thirteen million, six hundred twelve thousand, one hundred forty-four".