1159811135 has 24 divisors (see below), whose sum is σ = 1630697040. Its totient is φ = 789554304.

The previous prime is 1159811113. The next prime is 1159811197. The reversal of 1159811135 is 5311189511.

It is a Cunningham number, because it is equal to 34056²-1.

It is not a de Polignac number, because 1159811135 - 2¹⁶ = 1159745599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a junction number, because it is equal to n+sod(n) for n = 1159811095 and 1159811104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17027 + ... + 51083.

It is an arithmetic number, because the mean of its divisors is an integer number (67945710).

Almost surely, 2^1159811135 is an apocalyptic number.

1159811135 is a deficient number, since it is larger than the sum of its proper divisors (470885905).

1159811135 is a wasteful number, since it uses less digits than its factorization.

1159811135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34215 (or 34208 counting only the distinct ones).

The product of its digits is 5400, while the sum is 35.

The square root of 1159811135 is about 34055.9999853183. Note that the first 4 decimals coincide. The cubic root of 1159811135 is about 1050.6605473303.

The spelling of 1159811135 in words is "one billion, one hundred fifty-nine million, eight hundred eleven thousand, one hundred thirty-five".