1318144 has 36 divisors (see below), whose sum is σ = 2779840. Its totient is φ = 622080.

The previous prime is 1318139. The next prime is 1318147. The reversal of 1318144 is 4418131.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318147) 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, 4729 + ... + 4999.

2^1318144 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 1318144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1389920).

1318144 is an abundant number, since it is smaller than the sum of its proper divisors (1461696).

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

1318144 is an equidigital number, since it uses as much as digits as its factorization.

1318144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 292 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

The square root of 1318144 is about 1148.1045248583. The cubic root of 1318144 is about 109.6446937970.

It can be divided in two parts, 13181 and 44, that added together give a square (13225 = 115²).

The spelling of 1318144 in words is "one million, three hundred eighteen thousand, one hundred forty-four".