315135030144 has 128 divisors (see below), whose sum is σ = 915349599360. Its totient is φ = 95268096000.

The previous prime is 315135030143. The next prime is 315135030157. The reversal of 315135030144 is 441030531513.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315135030143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1689699 + ... + 1866909.

It is an arithmetic number, because the mean of its divisors is an integer number (7151168745).

Almost surely, 2^315135030144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 315135030144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (457674799680).

315135030144 is an abundant number, since it is smaller than the sum of its proper divisors (600214569216).

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

315135030144 is a wasteful number, since it uses less digits than its factorization.

315135030144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177660 (or 177648 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 315135030144 its reverse (441030531513), we get a palindrome (756165561657).

The spelling of 315135030144 in words is "three hundred fifteen billion, one hundred thirty-five million, thirty thousand, one hundred forty-four".