1143008644 has 12 divisors (see below), whose sum is σ = 2087233344. Its totient is φ = 546656264.

The previous prime is 1143008627. The next prime is 1143008663. The reversal of 1143008644 is 4468003411.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6211912 + ... + 6212095.

It is an arithmetic number, because the mean of its divisors is an integer number (173936112).

Almost surely, 2^1143008644 is an apocalyptic number.

It is an amenable number.

1143008644 is a deficient number, since it is larger than the sum of its proper divisors (944224700).

1143008644 is a wasteful number, since it uses less digits than its factorization.

1143008644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12424034 (or 12424032 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 1143008644 is about 33808.4108470067. The cubic root of 1143008644 is about 1045.5621141912.

The spelling of 1143008644 in words is "one billion, one hundred forty-three million, eight thousand, six hundred forty-four".