242818161 has 12 divisors (see below), whose sum is σ = 332749872. Its totient is φ = 157501008.

The previous prime is 242818159. The next prime is 242818171. The reversal of 242818161 is 161818242.

It is not a de Polignac number, because 242818161 - 2¹ = 242818159 is a prime.

It is a super-2 number, since 2×242818161² = 117921318622843842, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (242818171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25455 + ... + 33668.

It is an arithmetic number, because the mean of its divisors is an integer number (27729156).

Almost surely, 2^242818161 is an apocalyptic number.

It is an amenable number.

242818161 is a deficient number, since it is larger than the sum of its proper divisors (89931711).

242818161 is an equidigital number, since it uses as much as digits as its factorization.

242818161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59200 (or 59163 counting only the distinct ones).

The product of its digits is 6144, while the sum is 33.

The square root of 242818161 is about 15582.6236879416. The cubic root of 242818161 is about 623.8694536035.

It can be divided in two parts, 2428181 and 61, that added together give a palindrome (2428242).

The spelling of 242818161 in words is "two hundred forty-two million, eight hundred eighteen thousand, one hundred sixty-one".