315445244505242 has 16 divisors (see below), whose sum is σ = 474164600345280. Its totient is φ = 157390673977152.

The previous prime is 315445244505239. The next prime is 315445244505257. The reversal of 315445244505242 is 242505442544513.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71932703 + ... + 76191890.

It is an arithmetic number, because the mean of its divisors is an integer number (29635287521580).

Almost surely, 2^{315445244505242} is an apocalyptic number.

315445244505242 is a deficient number, since it is larger than the sum of its proper divisors (158719355840038).

315445244505242 is a wasteful number, since it uses less digits than its factorization.

315445244505242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148126837.

The product of its (nonzero) digits is 15360000, while the sum is 50.

The spelling of 315445244505242 in words is "three hundred fifteen trillion, four hundred forty-five billion, two hundred forty-four million, five hundred five thousand, two hundred forty-two".