1513342543 has 2 divisors, whose sum is σ = 1513342544. Its totient is φ = 1513342542.

The previous prime is 1513342451. The next prime is 1513342547. The reversal of 1513342543 is 3452433151.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1513342543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1513342547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 756671271 + 756671272.

It is an arithmetic number, because the mean of its divisors is an integer number (756671272).

Almost surely, 2^1513342543 is an apocalyptic number.

1513342543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1513342543 is an equidigital number, since it uses as much as digits as its factorization.

1513342543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 31.

The square root of 1513342543 is about 38901.7036002281. The cubic root of 1513342543 is about 1148.0983171532.

Adding to 1513342543 its reverse (3452433151), we get a palindrome (4965775694).

The spelling of 1513342543 in words is "one billion, five hundred thirteen million, three hundred forty-two thousand, five hundred forty-three".