242117 has 4 divisors (see below), whose sum is σ = 254880. Its totient is φ = 229356.

The previous prime is 242101. The next prime is 242119. The reversal of 242117 is 711242.

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.

It is a cyclic number.

It is not a de Polignac number, because 242117 - 2⁴ = 242101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242095 and 242104.

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 242117.

It is not an unprimeable number, because it can be changed into a prime (242119) 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, 6353 + ... + 6390.

It is an arithmetic number, because the mean of its divisors is an integer number (63720).

2²⁴²¹¹⁷ is an apocalyptic number.

It is an amenable number.

242117 is a deficient number, since it is larger than the sum of its proper divisors (12763).

242117 is a wasteful number, since it uses less digits than its factorization.

242117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12762.

The product of its digits is 112, while the sum is 17.

The square root of 242117 is about 492.0538588407. The cubic root of 242117 is about 62.3268380152.

Adding to 242117 its reverse (711242), we get a palindrome (953359).

The spelling of 242117 in words is "two hundred forty-two thousand, one hundred seventeen", and thus it is an iban number.