1143517456 has 20 divisors (see below), whose sum is σ = 2227811404. Its totient is φ = 568598400.

The previous prime is 1143517439. The next prime is 1143517457. The reversal of 1143517456 is 6547153411.

It can be written as a sum of positive squares in 2 ways, for example, as 268304400 + 875213056 = 16380^2 + 29584^2 .

It is not an unprimeable number, because it can be changed into a prime (1143517457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194535 + ... + 200326.

Almost surely, 2^1143517456 is an apocalyptic number.

1143517456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1143517456 is a deficient number, since it is larger than the sum of its proper divisors (1084293948).

1143517456 is a wasteful number, since it uses less digits than its factorization.

1143517456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395050 (or 395044 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 1143517456 is about 33815.9349419767. The cubic root of 1143517456 is about 1045.7172356867.

The spelling of 1143517456 in words is "one billion, one hundred forty-three million, five hundred seventeen thousand, four hundred fifty-six".