1143440541 has 12 divisors (see below), whose sum is σ = 1658915232. Its totient is φ = 758934216.

The previous prime is 1143440533. The next prime is 1143440567. The reversal of 1143440541 is 1450443411.

1143440541 is a `hidden beast` number, since 114 + 3 + 4 + 4 + 0 + 541 = 666.

It is not a de Polignac number, because 1143440541 - 2³ = 1143440533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143440521) 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 11 ways as a sum of consecutive naturals, for example, 277801 + ... + 281886.

It is an arithmetic number, because the mean of its divisors is an integer number (138242936).

Almost surely, 2^1143440541 is an apocalyptic number.

It is an amenable number.

1143440541 is a deficient number, since it is larger than the sum of its proper divisors (515474691).

1143440541 is a wasteful number, since it uses less digits than its factorization.

1143440541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559920 (or 559917 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1143440541 is about 33814.7976631533. The cubic root of 1143440541 is about 1045.6937895661.

Adding to 1143440541 its reverse (1450443411), we get a palindrome (2593883952).

The spelling of 1143440541 in words is "one billion, one hundred forty-three million, four hundred forty thousand, five hundred forty-one".