1086811289 has 2 divisors, whose sum is σ = 1086811290. Its totient is φ = 1086811288.

The previous prime is 1086811247. The next prime is 1086811321. The reversal of 1086811289 is 9821186801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 847799689 + 239011600 = 29117^2 + 15460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1086811289 is a prime.

It is not a weakly prime, because it can be changed into another prime (1086811189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543405644 + 543405645.

It is an arithmetic number, because the mean of its divisors is an integer number (543405645).

Almost surely, 2^1086811289 is an apocalyptic number.

It is an amenable number.

1086811289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1086811289 is an equidigital number, since it uses as much as digits as its factorization.

1086811289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 44.

The square root of 1086811289 is about 32966.8210326686. The cubic root of 1086811289 is about 1028.1379273745.

The spelling of 1086811289 in words is "one billion, eighty-six million, eight hundred eleven thousand, two hundred eighty-nine".