243104213549 has 8 divisors (see below), whose sum is σ = 245504243712. Its totient is φ = 240704948880.

The previous prime is 243104213543. The next prime is 243104213567. The reversal of 243104213549 is 945312401342.

243104213549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243104213549 - 2⁸ = 243104213293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243104213543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457727 + ... + 834099.

It is an arithmetic number, because the mean of its divisors is an integer number (30688030464).

Almost surely, 2^243104213549 is an apocalyptic number.

It is an amenable number.

243104213549 is a deficient number, since it is larger than the sum of its proper divisors (2400030163).

243104213549 is a wasteful number, since it uses less digits than its factorization.

243104213549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382747.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 243104213549 in words is "two hundred forty-three billion, one hundred four million, two hundred thirteen thousand, five hundred forty-nine".