315241 has 4 divisors (see below), whose sum is σ = 316800. Its totient is φ = 313684.

The previous prime is 315223. The next prime is 315247. The reversal of 315241 is 142513.

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: 142513 = 7 ⋅20359.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315241 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 (315247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421 + ... + 898.

It is an arithmetic number, because the mean of its divisors is an integer number (79200).

2³¹⁵²⁴¹ is an apocalyptic number.

It is an amenable number.

315241 is a deficient number, since it is larger than the sum of its proper divisors (1559).

315241 is a wasteful number, since it uses less digits than its factorization.

315241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558.

The product of its digits is 120, while the sum is 16.

The square root of 315241 is about 561.4632668305. The cubic root of 315241 is about 68.0582689711.

Adding to 315241 its reverse (142513), we get a palindrome (457754).

The spelling of 315241 in words is "three hundred fifteen thousand, two hundred forty-one".