315141453440 has 64 divisors (see below), whose sum is σ = 821874604320. Its totient is φ = 114596889600.

The previous prime is 315141453437. The next prime is 315141453463. The reversal of 315141453440 is 44354141513.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 315141453440.

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, 22375166 + ... + 22389245.

Almost surely, 2^315141453440 is an apocalyptic number.

It is an amenable number.

315141453440 is an abundant number, since it is smaller than the sum of its proper divisors (506733150880).

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

315141453440 is a wasteful number, since it uses less digits than its factorization.

315141453440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44764441 (or 44764429 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 315141453440 its reverse (44354141513), we get a palindrome (359495594953).

The spelling of 315141453440 in words is "three hundred fifteen billion, one hundred forty-one million, four hundred fifty-three thousand, four hundred forty".