1315245215543 has 8 divisors (see below), whose sum is σ = 1582249883520. Its totient is φ = 1068018671160.

The previous prime is 1315245215533. The next prime is 1315245215567. The reversal of 1315245215543 is 3455125425131.

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

It is not a de Polignac number, because 1315245215543 - 2¹² = 1315245211447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1315245215543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315245215513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4944530753 + ... + 4944531018.

It is an arithmetic number, because the mean of its divisors is an integer number (197781235440).

Almost surely, 2^{1315245215543} is an apocalyptic number.

1315245215543 is a deficient number, since it is larger than the sum of its proper divisors (267004667977).

1315245215543 is an equidigital number, since it uses as much as digits as its factorization.

1315245215543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9889061797.

The product of its digits is 360000, while the sum is 41.

The spelling of 1315245215543 in words is "one trillion, three hundred fifteen billion, two hundred forty-five million, two hundred fifteen thousand, five hundred forty-three".