1080491 has 2 divisors, whose sum is σ = 1080492. Its totient is φ = 1080490.

The previous prime is 1080481. The next prime is 1080523. The reversal of 1080491 is 1940801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1080491 - 2¹⁸ = 818347 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1080451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540245 + 540246.

It is an arithmetic number, because the mean of its divisors is an integer number (540246).

2^1080491 is an apocalyptic number.

1080491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1080491 is an equidigital number, since it uses as much as digits as its factorization.

1080491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1080491 is about 1039.4666901830. The cubic root of 1080491 is about 102.6141025596.

The spelling of 1080491 in words is "one million, eighty thousand, four hundred ninety-one".