315323205146 has 8 divisors (see below), whose sum is σ = 477170514324. Its totient is φ = 156266367040.

The previous prime is 315323205143. The next prime is 315323205187. The reversal of 315323205146 is 641502323513.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 223204278025 + 92118927121 = 472445^2 + 303511^2 .

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

It is not an unprimeable number, because it can be changed into a prime (315323205143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697617485 + ... + 697617936.

Almost surely, 2^315323205146 is an apocalyptic number.

315323205146 is a deficient number, since it is larger than the sum of its proper divisors (161847309178).

315323205146 is a wasteful number, since it uses less digits than its factorization.

315323205146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395235536.

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 315323205146 its reverse (641502323513), we get a palindrome (956825528659).

The spelling of 315323205146 in words is "three hundred fifteen billion, three hundred twenty-three million, two hundred five thousand, one hundred forty-six".