243814841 has 4 divisors (see below), whose sum is σ = 244036992. Its totient is φ = 243592692.

The previous prime is 243814829. The next prime is 243814849. The reversal of 243814841 is 148418342.

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 a de Polignac number, because none of the positive numbers 2^k-243814841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243814849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109421 + ... + 111626.

It is an arithmetic number, because the mean of its divisors is an integer number (61009248).

Almost surely, 2^243814841 is an apocalyptic number.

It is an amenable number.

243814841 is a deficient number, since it is larger than the sum of its proper divisors (222151).

243814841 is a wasteful number, since it uses less digits than its factorization.

243814841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222150.

The product of its digits is 24576, while the sum is 35.

The square root of 243814841 is about 15614.5714318389. The cubic root of 243814841 is about 624.7218739051.

The spelling of 243814841 in words is "two hundred forty-three million, eight hundred fourteen thousand, eight hundred forty-one".