315369478 has 4 divisors (see below), whose sum is σ = 473054220. Its totient is φ = 157684738.

The previous prime is 315369449. The next prime is 315369487. The reversal of 315369478 is 874963513.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78842368 + ... + 78842371.

It is an arithmetic number, because the mean of its divisors is an integer number (118263555).

Almost surely, 2^315369478 is an apocalyptic number.

315369478 is a deficient number, since it is larger than the sum of its proper divisors (157684742).

315369478 is a wasteful number, since it uses less digits than its factorization.

315369478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157684741.

The product of its digits is 544320, while the sum is 46.

The square root of 315369478 is about 17758.6451622865. The cubic root of 315369478 is about 680.6751354126.

It can be divided in two parts, 31536 and 9478, that added together give a palindrome (41014).

The spelling of 315369478 in words is "three hundred fifteen million, three hundred sixty-nine thousand, four hundred seventy-eight".