1081441 has 2 divisors, whose sum is σ = 1081442. Its totient is φ = 1081440.

The previous prime is 1081429. The next prime is 1081477. The reversal of 1081441 is 1441801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 810000 + 271441 = 900^2 + 521^2 .

It is a cyclic number.

It is not a de Polignac number, because 1081441 - 2¹⁹ = 557153 is a prime.

1081441 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1081541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540720 + 540721.

It is an arithmetic number, because the mean of its divisors is an integer number (540721).

2^1081441 is an apocalyptic number.

It is an amenable number.

1081441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081441 is an equidigital number, since it uses as much as digits as its factorization.

1081441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 1081441 is about 1039.9235548828. The cubic root of 1081441 is about 102.6441675459.

The spelling of 1081441 in words is "one million, eighty-one thousand, four hundred forty-one".