1143005384 has 24 divisors (see below), whose sum is σ = 2174047110. Its totient is φ = 563270976.

The previous prime is 1143005341. The next prime is 1143005393. The reversal of 1143005384 is 4835003411.

It can be written as a sum of positive squares in only one way, i.e., 947285284 + 195720100 = 30778^2 + 13990^2 .

It is a super-2 number, since 2×1143005384² = 2612922615705974912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 816317 + ... + 817715.

Almost surely, 2^1143005384 is an apocalyptic number.

It is an amenable number.

1143005384 is a deficient number, since it is larger than the sum of its proper divisors (1031041726).

1143005384 is an frugal number, since it uses more digits than its factorization.

1143005384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2877 (or 1474 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1143005384 is about 33808.3626341176. The cubic root of 1143005384 is about 1045.5611201667.

Adding to 1143005384 its reverse (4835003411), we get a palindrome (5978008795).

The spelling of 1143005384 in words is "one billion, one hundred forty-three million, five thousand, three hundred eighty-four".