1143203452 has 12 divisors (see below), whose sum is σ = 2001688416. Its totient is φ = 571292480.

The previous prime is 1143203449. The next prime is 1143203527. The reversal of 1143203452 is 2543023411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68893 + ... + 83860.

It is an arithmetic number, because the mean of its divisors is an integer number (166807368).

Almost surely, 2^1143203452 is an apocalyptic number.

It is an amenable number.

1143203452 is a deficient number, since it is larger than the sum of its proper divisors (858484964).

1143203452 is a wasteful number, since it uses less digits than its factorization.

1143203452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154628 (or 154626 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1143203452 is about 33811.2917824800. The cubic root of 1143203452 is about 1045.6215107365.

Adding to 1143203452 its reverse (2543023411), we get a palindrome (3686226863).

The spelling of 1143203452 in words is "one billion, one hundred forty-three million, two hundred three thousand, four hundred fifty-two".