1081369 has 2 divisors, whose sum is σ = 1081370. Its totient is φ = 1081368.

The previous prime is 1081361. The next prime is 1081403. The reversal of 1081369 is 9631801.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 705600 + 375769 = 840^2 + 613^2 .

It is a cyclic number.

It is not a de Polignac number, because 1081369 - 2³ = 1081361 is a prime.

It is a super-2 number, since 2×1081369² = 2338717828322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1081361) 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, 540684 + 540685.

It is an arithmetic number, because the mean of its divisors is an integer number (540685).

2^1081369 is an apocalyptic number.

It is an amenable number.

1081369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081369 is an equidigital number, since it uses as much as digits as its factorization.

1081369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1081369 is about 1039.8889363773. Note that the first 3 decimals coincide. The cubic root of 1081369 is about 102.6418895532.

The spelling of 1081369 in words is "one million, eighty-one thousand, three hundred sixty-nine".