315520450144 has 24 divisors (see below), whose sum is σ = 625649822280. Its totient is φ = 156625257216.

The previous prime is 315520450117. The next prime is 315520450151. The reversal of 315520450144 is 441054025513.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 35463229 + ... + 35472124.

It is an arithmetic number, because the mean of its divisors is an integer number (26068742595).

Almost surely, 2^315520450144 is an apocalyptic number.

It is an amenable number.

315520450144 is a deficient number, since it is larger than the sum of its proper divisors (310129372136).

315520450144 is a wasteful number, since it uses less digits than its factorization.

315520450144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70935502 (or 70935494 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 315520450144 its reverse (441054025513), we get a palindrome (756574475657).

The spelling of 315520450144 in words is "three hundred fifteen billion, five hundred twenty million, four hundred fifty thousand, one hundred forty-four".