1143140412 has 12 divisors (see below), whose sum is σ = 2667327656. Its totient is φ = 381046800.

The previous prime is 1143140389. The next prime is 1143140413. The reversal of 1143140412 is 2140413411.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143140413) 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, 47630839 + ... + 47630862.

Almost surely, 2^1143140412 is an apocalyptic number.

1143140412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1143140412 is an abundant number, since it is smaller than the sum of its proper divisors (1524187244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143140412 is a wasteful number, since it uses less digits than its factorization.

1143140412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95261708 (or 95261706 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1143140412 is about 33810.3595366864. The cubic root of 1143140412 is about 1045.6022907129.

Adding to 1143140412 its reverse (2140413411), we get a palindrome (3283553823).

The spelling of 1143140412 in words is "one billion, one hundred forty-three million, one hundred forty thousand, four hundred twelve".