243104841 has 16 divisors (see below), whose sum is σ = 411606400. Its totient is φ = 138916944.

The previous prime is 243104801. The next prime is 243104857. The reversal of 243104841 is 148401342.

It is not a de Polignac number, because 243104841 - 2¹⁸ = 242842697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243104801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642946 + ... + 643323.

It is an arithmetic number, because the mean of its divisors is an integer number (25725400).

Almost surely, 2^243104841 is an apocalyptic number.

243104841 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

243104841 is a deficient number, since it is larger than the sum of its proper divisors (168501559).

243104841 is a wasteful number, since it uses less digits than its factorization.

243104841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286285 (or 1286279 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 243104841 is about 15591.8196821282. The cubic root of 243104841 is about 624.1148780731.

The spelling of 243104841 in words is "two hundred forty-three million, one hundred four thousand, eight hundred forty-one".