315545413013 has 4 divisors (see below), whose sum is σ = 315563999148. Its totient is φ = 315526826880.

The previous prime is 315545412953. The next prime is 315545413033. The reversal of 315545413013 is 310314545513.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21085072849 + 294460340164 = 145207^2 + 542642^2 .

It is a cyclic number.

It is not a de Polignac number, because 315545413013 - 2¹⁰ = 315545411989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315545413033) 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 3 ways as a sum of consecutive naturals, for example, 9267578 + ... + 9301563.

It is an arithmetic number, because the mean of its divisors is an integer number (78890999787).

Almost surely, 2^315545413013 is an apocalyptic number.

It is an amenable number.

315545413013 is a deficient number, since it is larger than the sum of its proper divisors (18586135).

315545413013 is a wasteful number, since it uses less digits than its factorization.

315545413013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18586134.

The product of its (nonzero) digits is 54000, while the sum is 35.

Adding to 315545413013 its reverse (310314545513), we get a palindrome (625859958526).

The spelling of 315545413013 in words is "three hundred fifteen billion, five hundred forty-five million, four hundred thirteen thousand, thirteen".