1321036 has 12 divisors (see below), whose sum is σ = 2447928. Its totient is φ = 621632.

The previous prime is 1321031. The next prime is 1321063. The reversal of 1321036 is 6301231.

It is a super-2 number, since 2×1321036² = 3490272226592, which contains 22 as substring.

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, 9646 + ... + 9781.

It is an arithmetic number, because the mean of its divisors is an integer number (203994).

2^1321036 is an apocalyptic number.

It is an amenable number.

1321036 is a deficient number, since it is larger than the sum of its proper divisors (1126892).

1321036 is a wasteful number, since it uses less digits than its factorization.

1321036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19448 (or 19446 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1321036 is about 1149.3633020068. The cubic root of 1321036 is about 109.7248218247.

Adding to 1321036 its reverse (6301231), we get a palindrome (7622267).

The spelling of 1321036 in words is "one million, three hundred twenty-one thousand, thirty-six".