1143303245 has 48 divisors (see below), whose sum is σ = 1695955968. Its totient is φ = 724273920.

The previous prime is 1143303241. The next prime is 1143303253. The reversal of 1143303245 is 5423033411.

It is not a de Polignac number, because 1143303245 - 2² = 1143303241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143303241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 516932 + ... + 519138.

It is an arithmetic number, because the mean of its divisors is an integer number (35332416).

Almost surely, 2^1143303245 is an apocalyptic number.

It is an amenable number.

1143303245 is a deficient number, since it is larger than the sum of its proper divisors (552652723).

1143303245 is a wasteful number, since it uses less digits than its factorization.

1143303245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298 (or 2279 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1143303245 is about 33812.7674850788. The cubic root of 1143303245 is about 1045.6519347965.

Adding to 1143303245 its reverse (5423033411), we get a palindrome (6566336656).

The spelling of 1143303245 in words is "one billion, one hundred forty-three million, three hundred three thousand, two hundred forty-five".