1321342 has 16 divisors (see below), whose sum is σ = 2290032. Its totient is φ = 565120.

The previous prime is 1321319. The next prime is 1321349. The reversal of 1321342 is 2431231.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321349) 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 7 ways as a sum of consecutive naturals, for example, 1393 + ... + 2140.

It is an arithmetic number, because the mean of its divisors is an integer number (143127).

2^1321342 is an apocalyptic number.

1321342 is a deficient number, since it is larger than the sum of its proper divisors (968690).

1321342 is a wasteful number, since it uses less digits than its factorization.

1321342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3563.

The product of its digits is 144, while the sum is 16.

The square root of 1321342 is about 1149.4964114777. The cubic root of 1321342 is about 109.7332932576.

Adding to 1321342 its reverse (2431231), we get a palindrome (3752573).

The spelling of 1321342 in words is "one million, three hundred twenty-one thousand, three hundred forty-two".