315135222544 has 60 divisors (see below), whose sum is σ = 648942340900. Its totient is φ = 148221425664.

The previous prime is 315135222427. The next prime is 315135222551. The reversal of 315135222544 is 445222531513.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 217891036944 + 97244185600 = 466788^2 + 311840^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9365302 + ... + 9398890.

Almost surely, 2^315135222544 is an apocalyptic number.

315135222544 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 315135222544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324471170450).

315135222544 is an abundant number, since it is smaller than the sum of its proper divisors (333807118356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315135222544 is a wasteful number, since it uses less digits than its factorization.

315135222544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35660 (or 35637 counting only the distinct ones).

The product of its digits is 144000, while the sum is 37.

The spelling of 315135222544 in words is "three hundred fifteen billion, one hundred thirty-five million, two hundred twenty-two thousand, five hundred forty-four".