315501 has 4 divisors (see below), whose sum is σ = 420672. Its totient is φ = 210332.

The previous prime is 315493. The next prime is 315517. The reversal of 315501 is 105513.

315501 is nontrivially palindromic in base 15.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 105513 = 3 ⋅35171.

It is a cyclic number.

It is not a de Polignac number, because 315501 - 2³ = 315493 is a prime.

It is a D-number.

It is a Curzon 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 315501.

It is not an unprimeable number, because it can be changed into a prime (315521) 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, 52581 + ... + 52586.

It is an arithmetic number, because the mean of its divisors is an integer number (105168).

2³¹⁵⁵⁰¹ is an apocalyptic number.

It is an amenable number.

315501 is a deficient number, since it is larger than the sum of its proper divisors (105171).

315501 is a wasteful number, since it uses less digits than its factorization.

315501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105170.

The product of its (nonzero) digits is 75, while the sum is 15.

The square root of 315501 is about 561.6947569632. The cubic root of 315501 is about 68.0769745406.

The spelling of 315501 in words is "three hundred fifteen thousand, five hundred one".