1530142543 has 2 divisors, whose sum is σ = 1530142544. Its totient is φ = 1530142542.

The previous prime is 1530142541. The next prime is 1530142571. The reversal of 1530142543 is 3452410351.

It is an a-pointer prime, because the next prime (1530142571) can be obtained adding 1530142543 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1530142543 - 2¹ = 1530142541 is a prime.

Together with 1530142541, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1530142541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765071271 + 765071272.

It is an arithmetic number, because the mean of its divisors is an integer number (765071272).

Almost surely, 2^1530142543 is an apocalyptic number.

1530142543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530142543 is an equidigital number, since it uses as much as digits as its factorization.

1530142543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1530142543 is about 39117.0364802857. The cubic root of 1530142543 is about 1152.3311360701.

Adding to 1530142543 its reverse (3452410351), we get a palindrome (4982552894).

The spelling of 1530142543 in words is "one billion, five hundred thirty million, one hundred forty-two thousand, five hundred forty-three".