1159161898 has 16 divisors (see below), whose sum is σ = 1863207360. Its totient is φ = 538914496.

The previous prime is 1159161859. The next prime is 1159161907. The reversal of 1159161898 is 8981619511.

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 7 ways as a sum of consecutive naturals, for example, 202558 + ... + 208201.

It is an arithmetic number, because the mean of its divisors is an integer number (116450460).

Almost surely, 2^1159161898 is an apocalyptic number.

1159161898 is a deficient number, since it is larger than the sum of its proper divisors (704045462).

1159161898 is a wasteful number, since it uses less digits than its factorization.

1159161898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410861.

The product of its digits is 155520, while the sum is 49.

The square root of 1159161898 is about 34046.4667476671. The cubic root of 1159161898 is about 1050.4644651117.

The spelling of 1159161898 in words is "one billion, one hundred fifty-nine million, one hundred sixty-one thousand, eight hundred ninety-eight".