315043 has 4 divisors (see below), whose sum is σ = 316368. Its totient is φ = 313720.

The previous prime is 315037. The next prime is 315047. The reversal of 315043 is 340513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340513 = 167 ⋅2039.

It is a cyclic number.

It is not a de Polignac number, because 315043 - 2⁵ = 315011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315047) 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, 196 + ... + 817.

It is an arithmetic number, because the mean of its divisors is an integer number (79092).

2³¹⁵⁰⁴³ is an apocalyptic number.

315043 is a deficient number, since it is larger than the sum of its proper divisors (1325).

315043 is a wasteful number, since it uses less digits than its factorization.

315043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 315043 is about 561.2869141535. The cubic root of 315043 is about 68.0440170606.

Adding to 315043 its reverse (340513), we get a palindrome (655556).

The spelling of 315043 in words is "three hundred fifteen thousand, forty-three".