1089012289 has 2 divisors, whose sum is σ = 1089012290. Its totient is φ = 1089012288.

The previous prime is 1089012283. The next prime is 1089012293. The reversal of 1089012289 is 9822109801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1088472064 + 540225 = 32992^2 + 735^2 .

It is a cyclic number.

It is not a de Polignac number, because 1089012289 - 2²³ = 1080623681 is a prime.

It is not a weakly prime, because it can be changed into another prime (1089012283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544506144 + 544506145.

It is an arithmetic number, because the mean of its divisors is an integer number (544506145).

Almost surely, 2^1089012289 is an apocalyptic number.

It is an amenable number.

1089012289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089012289 is an equidigital number, since it uses as much as digits as its factorization.

1089012289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 1089012289 is about 33000.1861964444. The cubic root of 1089012289 is about 1028.8315177873.

The spelling of 1089012289 in words is "one billion, eighty-nine million, twelve thousand, two hundred eighty-nine".