1321136 has 10 divisors (see below), whose sum is σ = 2559732. Its totient is φ = 660560.

The previous prime is 1321109. The next prime is 1321139. The reversal of 1321136 is 6311231.

It is not an unprimeable number, because it can be changed into a prime (1321139) 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 as a sum of consecutive naturals, namely, 41270 + ... + 41301.

2^1321136 is an apocalyptic number.

1321136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1321136 is a deficient number, since it is larger than the sum of its proper divisors (1238596).

1321136 is an equidigital number, since it uses as much as digits as its factorization.

1321136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82579 (or 82573 counting only the distinct ones).

The product of its digits is 108, while the sum is 17.

The square root of 1321136 is about 1149.4068035295. The cubic root of 1321136 is about 109.7275904107.

Adding to 1321136 its reverse (6311231), we get a palindrome (7632367).

The spelling of 1321136 in words is "one million, three hundred twenty-one thousand, one hundred thirty-six".