1321226 has 8 divisors (see below), whose sum is σ = 1987524. Its totient is φ = 658720.

The previous prime is 1321219. The next prime is 1321247. The reversal of 1321226 is 6221231.

It can be written as a sum of positive squares in 2 ways, for example, as 1311025 + 10201 = 1145^2 + 101^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 206 + ... + 1638.

2^1321226 is an apocalyptic number.

1321226 is a deficient number, since it is larger than the sum of its proper divisors (666298).

1321226 is a wasteful number, since it uses less digits than its factorization.

1321226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896.

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

The square root of 1321226 is about 1149.4459534924. The cubic root of 1321226 is about 109.7300820187.

Adding to 1321226 its reverse (6221231), we get a palindrome (7542457).

The spelling of 1321226 in words is "one million, three hundred twenty-one thousand, two hundred twenty-six".