315338 has 4 divisors (see below), whose sum is σ = 473010. Its totient is φ = 157668.

The previous prime is 315313. The next prime is 315349. The reversal of 315338 is 833513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 833513 = 157 ⋅5309.

It can be written as a sum of positive squares in only one way, i.e., 299209 + 16129 = 547^2 + 127^2 .

It is a Curzon number.

It is an unprimeable number.

315338 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78833 + ... + 78836.

2³¹⁵³³⁸ is an apocalyptic number.

315338 is a deficient number, since it is larger than the sum of its proper divisors (157672).

315338 is a wasteful number, since it uses less digits than its factorization.

315338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157671.

The product of its digits is 1080, while the sum is 23.

The square root of 315338 is about 561.5496416168. The cubic root of 315338 is about 68.0652487898.

The spelling of 315338 in words is "three hundred fifteen thousand, three hundred thirty-eight".