1143541412 has 24 divisors (see below), whose sum is σ = 2156097216. Its totient is φ = 527552928.

The previous prime is 1143541411. The next prime is 1143541417. The reversal of 1143541412 is 2141453411.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1143541411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177113 + ... + 183455.

It is an arithmetic number, because the mean of its divisors is an integer number (89837384).

Almost surely, 2^1143541412 is an apocalyptic number.

It is an amenable number.

1143541412 is a deficient number, since it is larger than the sum of its proper divisors (1012555804).

1143541412 is a wasteful number, since it uses less digits than its factorization.

1143541412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9827 (or 9825 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 1143541412 is about 33816.2891518274. The cubic root of 1143541412 is about 1045.7245380172.

Adding to 1143541412 its reverse (2141453411), we get a palindrome (3284994823).

The spelling of 1143541412 in words is "one billion, one hundred forty-three million, five hundred forty-one thousand, four hundred twelve".