315105445163 has 4 divisors (see below), whose sum is σ = 320446215480. Its totient is φ = 309764674848.

The previous prime is 315105445141. The next prime is 315105445253. The reversal of 315105445163 is 361544501513.

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

It is a cyclic number.

It is not a de Polignac number, because 315105445163 - 2¹⁰ = 315105444139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315105445103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2670385070 + ... + 2670385187.

It is an arithmetic number, because the mean of its divisors is an integer number (80111553870).

Almost surely, 2^315105445163 is an apocalyptic number.

315105445163 is a deficient number, since it is larger than the sum of its proper divisors (5340770317).

315105445163 is an equidigital number, since it uses as much as digits as its factorization.

315105445163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5340770316.

The product of its (nonzero) digits is 108000, while the sum is 38.

Adding to 315105445163 its reverse (361544501513), we get a palindrome (676649946676).

The spelling of 315105445163 in words is "three hundred fifteen billion, one hundred five million, four hundred forty-five thousand, one hundred sixty-three".