242315 has 4 divisors (see below), whose sum is σ = 290784. Its totient is φ = 193848.

The previous prime is 242309. The next prime is 242329. The reversal of 242315 is 513242.

242315 is nontrivially palindromic in base 12.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242315 - 2⁸ = 242059 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 242293 and 242302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24227 + ... + 24236.

It is an arithmetic number, because the mean of its divisors is an integer number (72696).

2²⁴²³¹⁵ is an apocalyptic number.

242315 is a deficient number, since it is larger than the sum of its proper divisors (48469).

242315 is an equidigital number, since it uses as much as digits as its factorization.

242315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48468.

The product of its digits is 240, while the sum is 17.

The square root of 242315 is about 492.2550152106. The cubic root of 242315 is about 62.3438234003.

Adding to 242315 its reverse (513242), we get a palindrome (755557).

The spelling of 242315 in words is "two hundred forty-two thousand, three hundred fifteen".