1143543808 has 96 divisors (see below), whose sum is σ = 2604026880. Its totient is φ = 496967680.

The previous prime is 1143543781. The next prime is 1143543857. The reversal of 1143543808 is 8083453411.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517041 + ... + 519247.

It is an arithmetic number, because the mean of its divisors is an integer number (27125280).

Almost surely, 2^1143543808 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 1143543808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1302013440).

1143543808 is an abundant number, since it is smaller than the sum of its proper divisors (1460483072).

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

1143543808 is a wasteful number, since it uses less digits than its factorization.

1143543808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2263 (or 2243 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 1143543808 is about 33816.3245785227. The cubic root of 1143543808 is about 1045.7252683666.

The spelling of 1143543808 in words is "one billion, one hundred forty-three million, five hundred forty-three thousand, eight hundred eight".