1159943000 has 64 divisors (see below), whose sum is σ = 2728926720. Its totient is φ = 461472000.

The previous prime is 1159942981. The next prime is 1159943003. The reversal of 1159943000 is 3499511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159943003) by changing a digit.

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, 187964 + ... + 194036.

It is an arithmetic number, because the mean of its divisors is an integer number (42639480).

Almost surely, 2^1159943000 is an apocalyptic number.

1159943000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1159943000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1364463360).

1159943000 is an abundant number, since it is smaller than the sum of its proper divisors (1568983720).

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

1159943000 is a wasteful number, since it uses less digits than its factorization.

1159943000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6285 (or 6271 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 1159943000 is about 34057.9359327602. The cubic root of 1159943000 is about 1050.7003641874.

The spelling of 1159943000 in words is "one billion, one hundred fifty-nine million, nine hundred forty-three thousand".