1530143 has 2 divisors, whose sum is σ = 1530144. Its totient is φ = 1530142.

The previous prime is 1530131. The next prime is 1530149. The reversal of 1530143 is 3410351.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1530143 - 2¹⁰ = 1529119 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1530149) 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 as a sum of consecutive naturals, namely, 765071 + 765072.

It is an arithmetic number, because the mean of its divisors is an integer number (765072).

2^1530143 is an apocalyptic number.

1530143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530143 is an equidigital number, since it uses as much as digits as its factorization.

1530143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1530143 is about 1236.9894906587. The cubic root of 1530143 is about 115.2331250790.

Adding to 1530143 its reverse (3410351), we get a palindrome (4940494).

The spelling of 1530143 in words is "one million, five hundred thirty thousand, one hundred forty-three".