1128191559 has 32 divisors (see below), whose sum is σ = 1683204864. Its totient is φ = 666247680.

The previous prime is 1128191551. The next prime is 1128191563. The reversal of 1128191559 is 9551918211.

It is not a de Polignac number, because 1128191559 - 2³ = 1128191551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1128191559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128191551) 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 in 31 ways as a sum of consecutive naturals, for example, 869199 + ... + 870495.

It is an arithmetic number, because the mean of its divisors is an integer number (52600152).

Almost surely, 2^1128191559 is an apocalyptic number.

1128191559 is a deficient number, since it is larger than the sum of its proper divisors (555013305).

1128191559 is a wasteful number, since it uses less digits than its factorization.

1128191559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967.

The product of its digits is 32400, while the sum is 42.

The square root of 1128191559 is about 33588.5629195415. The cubic root of 1128191559 is about 1041.0244955622.

The spelling of 1128191559 in words is "one billion, one hundred twenty-eight million, one hundred ninety-one thousand, five hundred fifty-nine".