1321041 has 4 divisors (see below), whose sum is σ = 1761392. Its totient is φ = 880692.

The previous prime is 1321031. The next prime is 1321063. The reversal of 1321041 is 1401231.

It is a happy number.

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 de Polignac number, because none of the positive numbers 2^k-1321041 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 (1321031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220171 + ... + 220176.

It is an arithmetic number, because the mean of its divisors is an integer number (440348).

2^1321041 is an apocalyptic number.

It is an amenable number.

1321041 is a deficient number, since it is larger than the sum of its proper divisors (440351).

1321041 is an equidigital number, since it uses as much as digits as its factorization.

1321041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440350.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1321041 is about 1149.3654771221. The cubic root of 1321041 is about 109.7249602574.

Adding to 1321041 its reverse (1401231), we get a palindrome (2722272).

The spelling of 1321041 in words is "one million, three hundred twenty-one thousand, forty-one".