1331043 has 16 divisors (see below), whose sum is σ = 2044416. Its totient is φ = 754560.

The previous prime is 1331041. The next prime is 1331051. The reversal of 1331043 is 3401331.

It is not a de Polignac number, because 1331043 - 2¹ = 1331041 is a prime.

1331043 is a lucky number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (1331041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4930 + ... + 5192.

It is an arithmetic number, because the mean of its divisors is an integer number (127776).

2^1331043 is an apocalyptic number.

1331043 is a deficient number, since it is larger than the sum of its proper divisors (713373).

1331043 is a wasteful number, since it uses less digits than its factorization.

1331043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1331043 is about 1153.7083686964. The cubic root of 1331043 is about 110.0011845602.

Adding to 1331043 its reverse (3401331), we get a palindrome (4732374).

It can be divided in two parts, 133 and 1043, that added together give a triangular number (1176 = T₄₈).

The spelling of 1331043 in words is "one million, three hundred thirty-one thousand, forty-three".