1321144 has 16 divisors (see below), whose sum is σ = 2702520. Its totient is φ = 600480.

The previous prime is 1321141. The next prime is 1321157. The reversal of 1321144 is 4411231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321141) 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, 7419 + ... + 7594.

2^1321144 is an apocalyptic number.

It is an amenable number.

1321144 is an abundant number, since it is smaller than the sum of its proper divisors (1381376).

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

1321144 is a wasteful number, since it uses less digits than its factorization.

1321144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15030 (or 15026 counting only the distinct ones).

The product of its digits is 96, while the sum is 16.

The square root of 1321144 is about 1149.4102835802. The cubic root of 1321144 is about 109.7278118916.

Adding to 1321144 its reverse (4411231), we get a palindrome (5732375).

The spelling of 1321144 in words is "one million, three hundred twenty-one thousand, one hundred forty-four".