1081291 has 2 divisors, whose sum is σ = 1081292. Its totient is φ = 1081290.

The previous prime is 1081279. The next prime is 1081303. The reversal of 1081291 is 1921801.

It is a balanced prime because it is at equal distance from previous prime (1081279) and next prime (1081303).

It is a cyclic number.

It is not a de Polignac number, because 1081291 - 2⁷ = 1081163 is a prime.

It is not a weakly prime, because it can be changed into another prime (1081231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540645 + 540646.

It is an arithmetic number, because the mean of its divisors is an integer number (540646).

2^1081291 is an apocalyptic number.

1081291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081291 is an equidigital number, since it uses as much as digits as its factorization.

1081291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 1081291 is about 1039.8514316959. The cubic root of 1081291 is about 102.6394216137.

The spelling of 1081291 in words is "one million, eighty-one thousand, two hundred ninety-one".