1143911160 has 320 divisors, whose sum is σ = 4538603520. Its totient is φ = 252875520.

The previous prime is 1143911149. The next prime is 1143911161. The reversal of 1143911160 is 611193411.

1143911160 is a `hidden beast` number, since 114 + 391 + 1 + 160 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143911161) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 702267 + ... + 703893.

It is an arithmetic number, because the mean of its divisors is an integer number (14183136).

Almost surely, 2^1143911160 is an apocalyptic number.

1143911160 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 1143911160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2269301760).

1143911160 is an abundant number, since it is smaller than the sum of its proper divisors (3394692360).

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

1143911160 is a wasteful number, since it uses less digits than its factorization.

1143911160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688 (or 1675 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 1143911160 is about 33821.7557202461. The cubic root of 1143911160 is about 1045.8372326361.

The spelling of 1143911160 in words is "one billion, one hundred forty-three million, nine hundred eleven thousand, one hundred sixty".