1331067 has 4 divisors (see below), whose sum is σ = 1774760. Its totient is φ = 887376.

The previous prime is 1331063. The next prime is 1331093. The reversal of 1331067 is 7601331.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1331067 - 2² = 1331063 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221842 + ... + 221847.

It is an arithmetic number, because the mean of its divisors is an integer number (443690).

2^1331067 is an apocalyptic number.

1331067 is a deficient number, since it is larger than the sum of its proper divisors (443693).

1331067 is an equidigital number, since it uses as much as digits as its factorization.

1331067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443692.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 1331067 is about 1153.7187698915. The cubic root of 1331067 is about 110.0018456991.

Adding to 1331067 its reverse (7601331), we get a palindrome (8932398).

The spelling of 1331067 in words is "one million, three hundred thirty-one thousand, sixty-seven".