1322281 has 2 divisors, whose sum is σ = 1322282. Its totient is φ = 1322280.

The previous prime is 1322261. The next prime is 1322287. The reversal of 1322281 is 1822231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 968256 + 354025 = 984^2 + 595^2 .

It is a cyclic number.

It is not a de Polignac number, because 1322281 - 2⁹ = 1321769 is a prime.

It is a super-2 number, since 2×1322281² = 3496854085922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1322287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661140 + 661141.

It is an arithmetic number, because the mean of its divisors is an integer number (661141).

2^1322281 is an apocalyptic number.

It is an amenable number.

1322281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322281 is an equidigital number, since it uses as much as digits as its factorization.

1322281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 19.

The square root of 1322281 is about 1149.9047786665. The cubic root of 1322281 is about 109.7592807673.

The spelling of 1322281 in words is "one million, three hundred twenty-two thousand, two hundred eighty-one".