1315020543 has 12 divisors (see below), whose sum is σ = 1774767960. Its totient is φ = 866104336.

The previous prime is 1315020541. The next prime is 1315020557. The reversal of 1315020543 is 3450205131.

It is not a de Polignac number, because 1315020543 - 2¹ = 1315020541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315020541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11148 + ... + 52481.

It is an arithmetic number, because the mean of its divisors is an integer number (147897330).

Almost surely, 2^1315020543 is an apocalyptic number.

1315020543 is a deficient number, since it is larger than the sum of its proper divisors (459747417).

1315020543 is an frugal number, since it uses more digits than its factorization.

1315020543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63798 (or 63715 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1315020543 is about 36263.2119785327. The cubic root of 1315020543 is about 1095.5802108455.

Adding to 1315020543 its reverse (3450205131), we get a palindrome (4765225674).

The spelling of 1315020543 in words is "one billion, three hundred fifteen million, twenty thousand, five hundred forty-three".