1081243 has 2 divisors, whose sum is σ = 1081244. Its totient is φ = 1081242.

The previous prime is 1081237. The next prime is 1081247. The reversal of 1081243 is 3421801.

It is a strong prime.

It is an emirp because it is prime and its reverse (3421801) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1081243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1081243.

It is not a weakly prime, because it can be changed into another prime (1081247) 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, 540621 + 540622.

It is an arithmetic number, because the mean of its divisors is an integer number (540622).

2^1081243 is an apocalyptic number.

1081243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081243 is an equidigital number, since it uses as much as digits as its factorization.

1081243 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1081243 is about 1039.8283512196. The cubic root of 1081243 is about 102.6379028227.

The spelling of 1081243 in words is "one million, eighty-one thousand, two hundred forty-three".