1165849 has 2 divisors, whose sum is σ = 1165850. Its totient is φ = 1165848.

The previous prime is 1165837. The next prime is 1165861. The reversal of 1165849 is 9485611.

It is a balanced prime because it is at equal distance from previous prime (1165837) and next prime (1165861).

It can be written as a sum of positive squares in only one way, i.e., 915849 + 250000 = 957^2 + 500^2 .

It is an emirp because it is prime and its reverse (9485611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1165849 - 2⁷ = 1165721 is a prime.

It is not a weakly prime, because it can be changed into another prime (1165819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582924 + 582925.

It is an arithmetic number, because the mean of its divisors is an integer number (582925).

2^1165849 is an apocalyptic number.

It is an amenable number.

1165849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1165849 is an equidigital number, since it uses as much as digits as its factorization.

1165849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 34.

The square root of 1165849 is about 1079.7448772743. The cubic root of 1165849 is about 105.2480605146.

The spelling of 1165849 in words is "one million, one hundred sixty-five thousand, eight hundred forty-nine".