1159312885 has 4 divisors (see below), whose sum is σ = 1391175468. Its totient is φ = 927450304.

The previous prime is 1159312883. The next prime is 1159312939. The reversal of 1159312885 is 5882139511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 339406929 + 819905956 = 18423^2 + 28634^2 .

It is a cyclic number.

It is not a de Polignac number, because 1159312885 - 2¹ = 1159312883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159312883) 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 3 ways as a sum of consecutive naturals, for example, 115931284 + ... + 115931293.

It is an arithmetic number, because the mean of its divisors is an integer number (347793867).

Almost surely, 2^1159312885 is an apocalyptic number.

It is an amenable number.

1159312885 is a deficient number, since it is larger than the sum of its proper divisors (231862583).

1159312885 is an equidigital number, since it uses as much as digits as its factorization.

1159312885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231862582.

The product of its digits is 86400, while the sum is 43.

The square root of 1159312885 is about 34048.6840421183. The cubic root of 1159312885 is about 1050.5100726588.

The spelling of 1159312885 in words is "one billion, one hundred fifty-nine million, three hundred twelve thousand, eight hundred eighty-five".