1543135543 has 8 divisors (see below), whose sum is σ = 1638366912. Its totient is φ = 1448399616.

The previous prime is 1543135541. The next prime is 1543135589. The reversal of 1543135543 is 3455313451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1543135543 - 2¹ = 1543135541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1543135499 and 1543135508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1543135541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117430 + ... + 129907.

It is an arithmetic number, because the mean of its divisors is an integer number (204795864).

Almost surely, 2^1543135543 is an apocalyptic number.

1543135543 is a deficient number, since it is larger than the sum of its proper divisors (95231369).

1543135543 is a wasteful number, since it uses less digits than its factorization.

1543135543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247721.

The product of its digits is 54000, while the sum is 34.

The square root of 1543135543 is about 39282.7639429814. The cubic root of 1543135543 is about 1155.5835692197.

Adding to 1543135543 its reverse (3455313451), we get a palindrome (4998448994).

The spelling of 1543135543 in words is "one billion, five hundred forty-three million, one hundred thirty-five thousand, five hundred forty-three".