1143497144 has 16 divisors (see below), whose sum is σ = 2217990600. Its totient is φ = 552032992.

The previous prime is 1143497087. The next prime is 1143497149. The reversal of 1143497144 is 4417943411.

It is a junction number, because it is equal to n+sod(n) for n = 1143497098 and 1143497107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143497149) by changing a digit.

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, 2464202 + ... + 2464665.

Almost surely, 2^1143497144 is an apocalyptic number.

It is an amenable number.

1143497144 is a deficient number, since it is larger than the sum of its proper divisors (1074493456).

1143497144 is a wasteful number, since it uses less digits than its factorization.

1143497144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4928902 (or 4928898 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 1143497144 is about 33815.6346088610. The cubic root of 1143497144 is about 1045.7110440499.

The spelling of 1143497144 in words is "one billion, one hundred forty-three million, four hundred ninety-seven thousand, one hundred forty-four".