1143051840 has 504 divisors, whose sum is σ = 4721595840. Its totient is φ = 248555520.

The previous prime is 1143051827. The next prime is 1143051851. The reversal of 1143051840 is 481503411.

It is a happy number.

1143051840 is a `hidden beast` number, since 1 + 143 + 0 + 518 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (504).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 19373731 + ... + 19373789.

Almost surely, 2^1143051840 is an apocalyptic number.

1143051840 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 1143051840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2360797920).

1143051840 is an abundant number, since it is smaller than the sum of its proper divisors (3578544000).

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

1143051840 is a wasteful number, since it uses less digits than its factorization.

1143051840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 1143051840 is about 33809.0496760852. The cubic root of 1143051840 is about 1045.5752851421.

The spelling of 1143051840 in words is "one billion, one hundred forty-three million, fifty-one thousand, eight hundred forty".