315485 has 4 divisors (see below), whose sum is σ = 378588. Its totient is φ = 252384.

The previous prime is 315481. The next prime is 315493. The reversal of 315485 is 584513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 584513 = 59 ⋅9907.

It can be written as a sum of positive squares in 2 ways, for example, as 38809 + 276676 = 197^2 + 526^2 .

It is a cyclic number.

It is not a de Polignac number, because 315485 - 2² = 315481 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 315485.

It is not an unprimeable number, because it can be changed into a prime (315481) 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, 31544 + ... + 31553.

It is an arithmetic number, because the mean of its divisors is an integer number (94647).

2³¹⁵⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

315485 is a deficient number, since it is larger than the sum of its proper divisors (63103).

315485 is an equidigital number, since it uses as much as digits as its factorization.

315485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63102.

The product of its digits is 2400, while the sum is 26.

The square root of 315485 is about 561.6805141715. The cubic root of 315485 is about 68.0758237255.

Adding to 315485 its reverse (584513), we get a palindrome (899998).

The spelling of 315485 in words is "three hundred fifteen thousand, four hundred eighty-five".