1115226089 has 2 divisors, whose sum is σ = 1115226090. Its totient is φ = 1115226088.

The previous prime is 1115226067. The next prime is 1115226103. The reversal of 1115226089 is 9806225111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1115226025 + 64 = 33395^2 + 8^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115226089 - 2²⁰ = 1114177513 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1115226019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557613044 + 557613045.

It is an arithmetic number, because the mean of its divisors is an integer number (557613045).

Almost surely, 2^1115226089 is an apocalyptic number.

It is an amenable number.

1115226089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115226089 is an equidigital number, since it uses as much as digits as its factorization.

1115226089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 1115226089 is about 33395.0009582273. Note that the first 3 decimals coincide. The cubic root of 1115226089 is about 1037.0212127496.

The spelling of 1115226089 in words is "one billion, one hundred fifteen million, two hundred twenty-six thousand, eighty-nine".