13116144 has 20 divisors (see below), whose sum is σ = 33883496. Its totient is φ = 4372032.

The previous prime is 13116119. The next prime is 13116157. The reversal of 13116144 is 44161131.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 13116144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136579 + ... + 136674.

Almost surely, 2^13116144 is an apocalyptic number.

It is an amenable number.

13116144 is an abundant number, since it is smaller than the sum of its proper divisors (20767352).

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

13116144 is a wasteful number, since it uses less digits than its factorization.

13116144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273264 (or 273258 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

The square root of 13116144 is about 3621.6217361839. The cubic root of 13116144 is about 235.8316332402.

Adding to 13116144 its reverse (44161131), we get a palindrome (57277275).

The spelling of 13116144 in words is "thirteen million, one hundred sixteen thousand, one hundred forty-four".