11550144 has 56 divisors (see below), whose sum is σ = 31292800. Its totient is φ = 3757824.

The previous prime is 11550137. The next prime is 11550169. The reversal of 11550144 is 44105511.

It is a self number, because there is not a number n which added to its sum of digits gives 11550144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7557 + ... + 8955.

It is an arithmetic number, because the mean of its divisors is an integer number (558800).

Almost surely, 2^11550144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11550144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15646400).

11550144 is an abundant number, since it is smaller than the sum of its proper divisors (19742656).

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

11550144 is a wasteful number, since it uses less digits than its factorization.

11550144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457 (or 1447 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 11550144 is about 3398.5502791632. The cubic root of 11550144 is about 226.0454655703.

Adding to 11550144 its reverse (44105511), we get a palindrome (55655655).

The spelling of 11550144 in words is "eleven million, five hundred fifty thousand, one hundred forty-four".