1128691159 has 2 divisors, whose sum is σ = 1128691160. Its totient is φ = 1128691158.

The previous prime is 1128691129. The next prime is 1128691243. The reversal of 1128691159 is 9511968211.

It is a weak prime.

It is an emirp because it is prime and its reverse (9511968211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1128691159 - 2¹⁷ = 1128560087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1128691129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564345579 + 564345580.

It is an arithmetic number, because the mean of its divisors is an integer number (564345580).

Almost surely, 2^1128691159 is an apocalyptic number.

1128691159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128691159 is an equidigital number, since it uses as much as digits as its factorization.

1128691159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 43.

The square root of 1128691159 is about 33595.9991516847. Note that the first 3 decimals coincide. The cubic root of 1128691159 is about 1041.1781394125.

The spelling of 1128691159 in words is "one billion, one hundred twenty-eight million, six hundred ninety-one thousand, one hundred fifty-nine".