242517 has 8 divisors (see below), whose sum is σ = 352800. Its totient is φ = 146960.

The previous prime is 242509. The next prime is 242519. The reversal of 242517 is 715242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 242517 - 2³ = 242509 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 4⁷ + 5⁷ + 2¹⁷ + 1 + 7⁵ .

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 242493 and 242502.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 242517.

It is not an unprimeable number, because it can be changed into a prime (242519) 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 7 ways as a sum of consecutive naturals, for example, 3642 + ... + 3707.

It is an arithmetic number, because the mean of its divisors is an integer number (44100).

2²⁴²⁵¹⁷ is an apocalyptic number.

It is an amenable number.

242517 is a deficient number, since it is larger than the sum of its proper divisors (110283).

242517 is a wasteful number, since it uses less digits than its factorization.

242517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7363.

The product of its digits is 560, while the sum is 21.

The square root of 242517 is about 492.4601506721. The cubic root of 242517 is about 62.3611423922.

Adding to 242517 its reverse (715242), we get a palindrome (957759).

It can be divided in two parts, 2425 and 17, that added together give a palindrome (2442).

The spelling of 242517 in words is "two hundred forty-two thousand, five hundred seventeen".