242183681 has 4 divisors (see below), whose sum is σ = 242237232. Its totient is φ = 242130132.

The previous prime is 242183677. The next prime is 242183699. The reversal of 242183681 is 186381242.

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 242183681 - 2² = 242183677 is a prime.

It is a super-2 number, since 2×242183681² = 117305870685419522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242183881) 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, 19295 + ... + 29268.

It is an arithmetic number, because the mean of its divisors is an integer number (60559308).

Almost surely, 2^242183681 is an apocalyptic number.

It is an amenable number.

242183681 is a deficient number, since it is larger than the sum of its proper divisors (53551).

242183681 is an equidigital number, since it uses as much as digits as its factorization.

242183681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53550.

The product of its digits is 18432, while the sum is 35.

The square root of 242183681 is about 15562.2517972175. The cubic root of 242183681 is about 623.3255926352.

The spelling of 242183681 in words is "two hundred forty-two million, one hundred eighty-three thousand, six hundred eighty-one".