1143643076 has 12 divisors (see below), whose sum is σ = 2088391872. Its totient is φ = 546959688.

The previous prime is 1143643069. The next prime is 1143643121. The reversal of 1143643076 is 6703463411.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6215360 + ... + 6215543.

It is an arithmetic number, because the mean of its divisors is an integer number (174032656).

Almost surely, 2^1143643076 is an apocalyptic number.

It is an amenable number.

1143643076 is a deficient number, since it is larger than the sum of its proper divisors (944748796).

1143643076 is a wasteful number, since it uses less digits than its factorization.

1143643076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12430930 (or 12430928 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 1143643076 is about 33817.7922993208. The cubic root of 1143643076 is about 1045.7555263685.

The spelling of 1143643076 in words is "one billion, one hundred forty-three million, six hundred forty-three thousand, seventy-six".