1081306 has 12 divisors (see below), whose sum is σ = 1669086. Its totient is φ = 525200.

The previous prime is 1081303. The next prime is 1081307. The reversal of 1081306 is 6031801.

It can be written as a sum of positive squares in 3 ways, for example, as 982081 + 99225 = 991^2 + 315^2 .

It is not an unprimeable number, because it can be changed into a prime (1081303) 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 in 5 ways as a sum of consecutive naturals, for example, 10656 + ... + 10756.

2^1081306 is an apocalyptic number.

1081306 is a deficient number, since it is larger than the sum of its proper divisors (587780).

1081306 is an equidigital number, since it uses as much as digits as its factorization.

1081306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1081306 is about 1039.8586442397. The cubic root of 1081306 is about 102.6398962266.

The spelling of 1081306 in words is "one million, eighty-one thousand, three hundred six".