315155445447 has 8 divisors (see below), whose sum is σ = 420650989056. Its totient is φ = 209881766072.

The previous prime is 315155445443. The next prime is 315155445463. The reversal of 315155445447 is 744544551513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 315155445447 - 2² = 315155445443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315155445396 and 315155445405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315155445443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55462743 + ... + 55468424.

It is an arithmetic number, because the mean of its divisors is an integer number (52581373632).

Almost surely, 2^315155445447 is an apocalyptic number.

315155445447 is a deficient number, since it is larger than the sum of its proper divisors (105495543609).

315155445447 is a wasteful number, since it uses less digits than its factorization.

315155445447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110932117.

The product of its digits is 3360000, while the sum is 48.

The spelling of 315155445447 in words is "three hundred fifteen billion, one hundred fifty-five million, four hundred forty-five thousand, four hundred forty-seven".