315520113042545 has 8 divisors (see below), whose sum is σ = 379818533557224. Its totient is φ = 251619825163264.

The previous prime is 315520113042523. The next prime is 315520113042619. The reversal of 315520113042545 is 545240311025513.

It can be written as a sum of positive squares in 4 ways, for example, as 154263559696 + 315365849482849 = 392764^2 + 17758543^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 315520113042545 - 2¹⁰ = 315520113041521 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 99533157104 + ... + 99533160273.

It is an arithmetic number, because the mean of its divisors is an integer number (47477316694653).

Almost surely, 2^{315520113042545} is an apocalyptic number.

It is an amenable number.

315520113042545 is a deficient number, since it is larger than the sum of its proper divisors (64298420514679).

315520113042545 is a wasteful number, since it uses less digits than its factorization.

315520113042545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199066317699.

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

The spelling of 315520113042545 in words is "three hundred fifteen trillion, five hundred twenty billion, one hundred thirteen million, forty-two thousand, five hundred forty-five".