242318117 has 4 divisors (see below), whose sum is σ = 242405676. Its totient is φ = 242230560.

The previous prime is 242318059. The next prime is 242318123. The reversal of 242318117 is 711813242.

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

It can be written as a sum of positive squares in 2 ways, for example, as 209496676 + 32821441 = 14474^2 + 5729^2 .

It is a cyclic number.

It is not a de Polignac number, because 242318117 - 2⁶ = 242318053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242318117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242318137) 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, 39488 + ... + 45209.

It is an arithmetic number, because the mean of its divisors is an integer number (60601419).

Almost surely, 2^242318117 is an apocalyptic number.

It is an amenable number.

242318117 is a deficient number, since it is larger than the sum of its proper divisors (87559).

242318117 is an equidigital number, since it uses as much as digits as its factorization.

242318117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87558.

The product of its digits is 2688, while the sum is 29.

The square root of 242318117 is about 15566.5704957772. The cubic root of 242318117 is about 623.4409071746.

The spelling of 242318117 in words is "two hundred forty-two million, three hundred eighteen thousand, one hundred seventeen".