1143546536 has 32 divisors (see below), whose sum is σ = 2340835200. Its totient is φ = 519402240.

The previous prime is 1143546517. The next prime is 1143546563. The reversal of 1143546536 is 6356453411.

It is a self number, because there is not a number n which added to its sum of digits gives 1143546536.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135200 + ... + 143408.

It is an arithmetic number, because the mean of its divisors is an integer number (73151100).

Almost surely, 2^1143546536 is an apocalyptic number.

It is an amenable number.

1143546536 is an abundant number, since it is smaller than the sum of its proper divisors (1197288664).

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

1143546536 is a wasteful number, since it uses less digits than its factorization.

1143546536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9809 (or 9805 counting only the distinct ones).

The product of its digits is 129600, while the sum is 38.

The square root of 1143546536 is about 33816.3649140472. The cubic root of 1143546536 is about 1045.7260999150.

Adding to 1143546536 its reverse (6356453411), we get a palindrome (7499999947).

The spelling of 1143546536 in words is "one billion, one hundred forty-three million, five hundred forty-six thousand, five hundred thirty-six".