1143322345 has 16 divisors (see below), whose sum is σ = 1509091200. Its totient is φ = 831502320.

The previous prime is 1143322343. The next prime is 1143322373. The reversal of 1143322345 is 5432233411.

It is a happy number.

It is not a de Polignac number, because 1143322345 - 2¹ = 1143322343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1143322343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79245 + ... + 92554.

It is an arithmetic number, because the mean of its divisors is an integer number (94318200).

Almost surely, 2^1143322345 is an apocalyptic number.

It is an amenable number.

1143322345 is a deficient number, since it is larger than the sum of its proper divisors (365768855).

1143322345 is an equidigital number, since it uses as much as digits as its factorization.

1143322345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171837 (or 171815 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 1143322345 is about 33813.0499215909. The cubic root of 1143322345 is about 1045.6577576438.

Adding to 1143322345 its reverse (5432233411), we get a palindrome (6575555756).

The spelling of 1143322345 in words is "one billion, one hundred forty-three million, three hundred twenty-two thousand, three hundred forty-five".