1143545268 has 96 divisors (see below), whose sum is σ = 2821496832. Its totient is φ = 360057600.

The previous prime is 1143545251. The next prime is 1143545281. The reversal of 1143545268 is 8625453411.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4040655 + ... + 4040937.

It is an arithmetic number, because the mean of its divisors is an integer number (29390592).

Almost surely, 2^1143545268 is an apocalyptic number.

It is an amenable number.

1143545268 is an abundant number, since it is smaller than the sum of its proper divisors (1677951564).

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

1143545268 is a wasteful number, since it uses less digits than its factorization.

1143545268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565 (or 563 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 1143545268 is about 33816.3461657229. The cubic root of 1143545268 is about 1045.7257134037.

Adding to 1143545268 its reverse (8625453411), we get a palindrome (9768998679).

The spelling of 1143545268 in words is "one billion, one hundred forty-three million, five hundred forty-five thousand, two hundred sixty-eight".