243946541227 has 8 divisors (see below), whose sum is σ = 249524384256. Its totient is φ = 238384843752.

The previous prime is 243946541221. The next prime is 243946541239. The reversal of 243946541227 is 722145649342.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243946541227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243946541221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4005823 + ... + 4066264.

It is an arithmetic number, because the mean of its divisors is an integer number (31190548032).

Almost surely, 2^243946541227 is an apocalyptic number.

243946541227 is a deficient number, since it is larger than the sum of its proper divisors (5577843029).

243946541227 is an equidigital number, since it uses as much as digits as its factorization.

243946541227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8072777.

The product of its digits is 2903040, while the sum is 49.

The spelling of 243946541227 in words is "two hundred forty-three billion, nine hundred forty-six million, five hundred forty-one thousand, two hundred twenty-seven".