315450236521045 has 4 divisors (see below), whose sum is σ = 378540283825260. Its totient is φ = 252360189216832.

The previous prime is 315450236521003. The next prime is 315450236521051. The reversal of 315450236521045 is 540125632054513.

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 35324205635889 + 280126030885156 = 5943417^2 + 16736966^2 .

It is a cyclic number.

It is not a de Polignac number, because 315450236521045 - 2²⁷ = 315450102303317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315450236520986 and 315450236521004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31545023652100 + ... + 31545023652109.

It is an arithmetic number, because the mean of its divisors is an integer number (94635070956315).

Almost surely, 2^{315450236521045} is an apocalyptic number.

It is an amenable number.

315450236521045 is a deficient number, since it is larger than the sum of its proper divisors (63090047304215).

315450236521045 is an equidigital number, since it uses as much as digits as its factorization.

315450236521045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63090047304214.

The product of its (nonzero) digits is 2160000, while the sum is 46.

Adding to 315450236521045 its reverse (540125632054513), we get a palindrome (855575868575558).

The spelling of 315450236521045 in words is "three hundred fifteen trillion, four hundred fifty billion, two hundred thirty-six million, five hundred twenty-one thousand, forty-five".