1170144 has 72 divisors (see below), whose sum is σ = 3538080. Its totient is φ = 365568.

The previous prime is 1170139. The next prime is 1170167. The reversal of 1170144 is 4410711.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4777 + ... + 5015.

It is an arithmetic number, because the mean of its divisors is an integer number (49140).

2^1170144 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 1170144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1769040).

1170144 is an abundant number, since it is smaller than the sum of its proper divisors (2367936).

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

1170144 is a wasteful number, since it uses less digits than its factorization.

1170144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 1170144 is about 1081.7319446147. The cubic root of 1170144 is about 105.3771471133.

Adding to 1170144 its reverse (4410711), we get a palindrome (5580855).

The spelling of 1170144 in words is "one million, one hundred seventy thousand, one hundred forty-four".