13600144 has 10 divisors (see below), whose sum is σ = 26350310. Its totient is φ = 6800064.

The previous prime is 13600141. The next prime is 13600157. The reversal of 13600144 is 44100631.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7290000 + 6310144 = 2700^2 + 2512^2 .

It is not an unprimeable number, because it can be changed into a prime (13600141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424989 + ... + 425020.

It is an arithmetic number, because the mean of its divisors is an integer number (2635031).

Almost surely, 2^13600144 is an apocalyptic number.

It is an amenable number.

13600144 is a deficient number, since it is larger than the sum of its proper divisors (12750166).

13600144 is an equidigital number, since it uses as much as digits as its factorization.

13600144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850017 (or 850011 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 13600144 is about 3687.8373066067. The cubic root of 13600144 is about 238.6974808412.

Adding to 13600144 its reverse (44100631), we get a palindrome (57700775).

The spelling of 13600144 in words is "thirteen million, six hundred thousand, one hundred forty-four".