1143683520 has 336 divisors, whose sum is σ = 4334365728. Its totient is φ = 254607360.

The previous prime is 1143683507. The next prime is 1143683531. The reversal of 1143683520 is 253863411.

It is a tau number, because it is divible by the number of its divisors (336).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1928344 + ... + 1928936.

It is an arithmetic number, because the mean of its divisors is an integer number (12899898).

Almost surely, 2^1143683520 is an apocalyptic number.

1143683520 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 1143683520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2167182864).

1143683520 is an abundant number, since it is smaller than the sum of its proper divisors (3190682208).

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

1143683520 is a wasteful number, since it uses less digits than its factorization.

1143683520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668 (or 651 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1143683520 is about 33818.3902632872. The cubic root of 1143683520 is about 1045.7678536522.

The spelling of 1143683520 in words is "one billion, one hundred forty-three million, six hundred eighty-three thousand, five hundred twenty".