1143031432 has 8 divisors (see below), whose sum is σ = 2143183950. Its totient is φ = 571515712.

The previous prime is 1143031427. The next prime is 1143031441. The reversal of 1143031432 is 2341303411.

It can be written as a sum of positive squares in only one way, i.e., 885300516 + 257730916 = 29754^2 + 16054^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71439457 + ... + 71439472.

Almost surely, 2^1143031432 is an apocalyptic number.

It is an amenable number.

1143031432 is a deficient number, since it is larger than the sum of its proper divisors (1000152518).

1143031432 is a wasteful number, since it uses less digits than its factorization.

1143031432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142878935 (or 142878931 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1143031432 is about 33808.7478620549. The cubic root of 1143031432 is about 1045.5690625525.

Adding to 1143031432 its reverse (2341303411), we get a palindrome (3484334843).

The spelling of 1143031432 in words is "one billion, one hundred forty-three million, thirty-one thousand, four hundred thirty-two".