1159198208 has 160 divisors (see below), whose sum is σ = 2887315200. Its totient is φ = 453648384.

The previous prime is 1159198163. The next prime is 1159198231. The reversal of 1159198208 is 8028919511.

It is a Cunningham number, because it is equal to 34047²-1.

It is a super-2 number, since 2×1159198208² = 2687480970860822528, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 1974491 + ... + 1975077.

It is an arithmetic number, because the mean of its divisors is an integer number (18045720).

Almost surely, 2^1159198208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1159198208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1443657600).

1159198208 is an abundant number, since it is smaller than the sum of its proper divisors (1728116992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1159198208 is an equidigital number, since it uses as much as digits as its factorization.

1159198208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 44.

The square root of 1159198208 is about 34046.9999853144. Note that the first 4 decimals coincide. The cubic root of 1159198208 is about 1050.4754333715.

The spelling of 1159198208 in words is "one billion, one hundred fifty-nine million, one hundred ninety-eight thousand, two hundred eight".