315385 has 8 divisors (see below), whose sum is σ = 432576. Its totient is φ = 216240.

The previous prime is 315377. The next prime is 315389. The reversal of 315385 is 583513.

It is a happy number.

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

It is not a de Polignac number, because 315385 - 2³ = 315377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4471 + ... + 4540.

It is an arithmetic number, because the mean of its divisors is an integer number (54072).

2³¹⁵³⁸⁵ is an apocalyptic number.

315385 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

315385 is a deficient number, since it is larger than the sum of its proper divisors (117191).

315385 is an equidigital number, since it uses as much as digits as its factorization.

315385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9023.

The product of its digits is 1800, while the sum is 25.

The square root of 315385 is about 561.5914885395. The cubic root of 315385 is about 68.0686302490.

Adding to 315385 its reverse (583513), we get a palindrome (898898).

The spelling of 315385 in words is "three hundred fifteen thousand, three hundred eighty-five".