1188144 has 60 divisors (see below), whose sum is σ = 3430336. Its totient is φ = 383616.

The previous prime is 1188073. The next prime is 1188149. The reversal of 1188144 is 4418811.

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

It is not an unprimeable number, because it can be changed into a prime (1188149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5217 + ... + 5439.

2^1188144 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 1188144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1715168).

1188144 is an abundant number, since it is smaller than the sum of its proper divisors (2242192).

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

1188144 is a wasteful number, since it uses less digits than its factorization.

1188144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 265 counting only the distinct ones).

The product of its digits is 1024, while the sum is 27.

The square root of 1188144 is about 1090.0201832994. The cubic root of 1188144 is about 105.9147290970.

The spelling of 1188144 in words is "one million, one hundred eighty-eight thousand, one hundred forty-four".