13550144 has 28 divisors (see below), whose sum is σ = 27052524. Its totient is φ = 6733824.

The previous prime is 13550143. The next prime is 13550153. The reversal of 13550144 is 44105531.

It can be written as a sum of positive squares in 2 ways, for example, as 3564544 + 9985600 = 1888^2 + 3160^2 .

It is not an unprimeable number, because it can be changed into a prime (13550143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11804 + ... + 12900.

Almost surely, 2^13550144 is an apocalyptic number.

It is an amenable number.

13550144 is a deficient number, since it is larger than the sum of its proper divisors (13502380).

13550144 is a wasteful number, since it uses less digits than its factorization.

13550144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302 (or 1292 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 13550144 is about 3681.0520235389. The cubic root of 13550144 is about 238.4046033074.

Adding to 13550144 its reverse (44105531), we get a palindrome (57655675).

The spelling of 13550144 in words is "thirteen million, five hundred fifty thousand, one hundred forty-four".