1143040312 has 16 divisors (see below), whose sum is σ = 2195474400. Its totient is φ = 557580480.

The previous prime is 1143040303. The next prime is 1143040333. The reversal of 1143040312 is 2130403411.

It is a self number, because there is not a number n which added to its sum of digits gives 1143040312.

It is a congruent number.

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, 1742112 + ... + 1742767.

It is an arithmetic number, because the mean of its divisors is an integer number (137217150).

Almost surely, 2^1143040312 is an apocalyptic number.

It is an amenable number.

1143040312 is a deficient number, since it is larger than the sum of its proper divisors (1052434088).

1143040312 is a wasteful number, since it uses less digits than its factorization.

1143040312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3484926 (or 3484922 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1143040312 is about 33808.8791887575. The cubic root of 1143040312 is about 1045.5717701565.

Adding to 1143040312 its reverse (2130403411), we get a palindrome (3273443723).

The spelling of 1143040312 in words is "one billion, one hundred forty-three million, forty thousand, three hundred twelve".