315226312 has 8 divisors (see below), whose sum is σ = 591049350. Its totient is φ = 157613152.

The previous prime is 315226279. The next prime is 315226343. The reversal of 315226312 is 213622513.

It can be written as a sum of positive squares in only one way, i.e., 310957956 + 4268356 = 17634^2 + 2066^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19701637 + ... + 19701652.

Almost surely, 2^315226312 is an apocalyptic number.

It is an amenable number.

315226312 is a deficient number, since it is larger than the sum of its proper divisors (275823038).

315226312 is a wasteful number, since it uses less digits than its factorization.

315226312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39403295 (or 39403291 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 315226312 is about 17754.6138228912. The cubic root of 315226312 is about 680.5721194338.

Adding to 315226312 its reverse (213622513), we get a palindrome (528848825).

The spelling of 315226312 in words is "three hundred fifteen million, two hundred twenty-six thousand, three hundred twelve".