313523 has 4 divisors (see below), whose sum is σ = 358320. Its totient is φ = 268728.

The previous prime is 313517. The next prime is 313543. The reversal of 313523 is 325313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325313 = 61 ⋅5333.

It is a cyclic number.

It is not a de Polignac number, because 313523 - 2⁴ = 313507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313543) 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, 22388 + ... + 22401.

It is an arithmetic number, because the mean of its divisors is an integer number (89580).

2³¹³⁵²³ is an apocalyptic number.

313523 is a deficient number, since it is larger than the sum of its proper divisors (44797).

313523 is an equidigital number, since it uses as much as digits as its factorization.

313523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44796.

The product of its digits is 270, while the sum is 17.

The square root of 313523 is about 559.9312457793. The cubic root of 313523 is about 67.9344090715.

Adding to 313523 its reverse (325313), we get a palindrome (638836).

The spelling of 313523 in words is "three hundred thirteen thousand, five hundred twenty-three".