1143143552 has 16 divisors (see below), whose sum is σ = 2277356550. Its totient is φ = 571571712.

The previous prime is 1143143549. The next prime is 1143143579. The reversal of 1143143552 is 2553413411.

It can be written as a sum of positive squares in only one way, i.e., 1141358656 + 1784896 = 33784^2 + 1336^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-3 number, since 3×1143143552³ (a number of 28 digits) contains 333 as substring.

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 as a sum of consecutive naturals, namely, 4465277 + ... + 4465532.

Almost surely, 2^1143143552 is an apocalyptic number.

It is an amenable number.

1143143552 is a deficient number, since it is larger than the sum of its proper divisors (1134212998).

1143143552 is an frugal number, since it uses more digits than its factorization.

1143143552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8930823 (or 8930811 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 1143143552 is about 33810.4059721264. The cubic root of 1143143552 is about 1045.6032480722.

Adding to 1143143552 its reverse (2553413411), we get a palindrome (3696556963).

The spelling of 1143143552 in words is "one billion, one hundred forty-three million, one hundred forty-three thousand, five hundred fifty-two".