315383 has 4 divisors (see below), whose sum is σ = 318288. Its totient is φ = 312480.

The previous prime is 315377. The next prime is 315389. The reversal of 315383 is 383513.

Added to its reverse (383513) it gives a square (698896 = 836²).

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 383513 = 13 ⋅29501.

It is an interprime number because it is at equal distance from previous prime (315377) and next prime (315389).

It is a cyclic number.

It is not a de Polignac number, because 315383 - 2⁸ = 315127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315389) 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, 1283 + ... + 1508.

It is an arithmetic number, because the mean of its divisors is an integer number (79572).

2³¹⁵³⁸³ is an apocalyptic number.

315383 is a deficient number, since it is larger than the sum of its proper divisors (2905).

315383 is a wasteful number, since it uses less digits than its factorization.

315383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904.

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

The square root of 315383 is about 561.5897078829. The cubic root of 315383 is about 68.0684863640.

Adding to 315383 its reverse (383513), we get a palindrome (698896).

The spelling of 315383 in words is "three hundred fifteen thousand, three hundred eighty-three".