1141826809 has 2 divisors, whose sum is σ = 1141826810. Its totient is φ = 1141826808.

The previous prime is 1141826779. The next prime is 1141826821. The reversal of 1141826809 is 9086281411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1045099584 + 96727225 = 32328^2 + 9835^2 .

It is an emirp because it is prime and its reverse (9086281411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1141826809 - 2⁹ = 1141826297 is a prime.

It is a super-3 number, since 3×1141826809³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (1141826849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570913404 + 570913405.

It is an arithmetic number, because the mean of its divisors is an integer number (570913405).

Almost surely, 2^1141826809 is an apocalyptic number.

It is an amenable number.

1141826809 is a deficient number, since it is larger than the sum of its proper divisors (1).

1141826809 is an equidigital number, since it uses as much as digits as its factorization.

1141826809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 1141826809 is about 33790.9279097216. The cubic root of 1141826809 is about 1045.2016304690.

The spelling of 1141826809 in words is "one billion, one hundred forty-one million, eight hundred twenty-six thousand, eight hundred nine".