1331441 has 4 divisors (see below), whose sum is σ = 1334592. Its totient is φ = 1328292.

The previous prime is 1331437. The next prime is 1331443. The reversal of 1331441 is 1441331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1331441 - 2² = 1331437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1331443) 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, 821 + ... + 1826.

It is an arithmetic number, because the mean of its divisors is an integer number (333648).

2^1331441 is an apocalyptic number.

It is an amenable number.

1331441 is a deficient number, since it is larger than the sum of its proper divisors (3151).

1331441 is an equidigital number, since it uses as much as digits as its factorization.

1331441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3150.

The product of its digits is 144, while the sum is 17.

The square root of 1331441 is about 1153.8808430683. The cubic root of 1331441 is about 110.0121474188.

Adding to 1331441 its reverse (1441331), we get a palindrome (2772772).

The spelling of 1331441 in words is "one million, three hundred thirty-one thousand, four hundred forty-one".