243315577159 has 4 divisors (see below), whose sum is σ = 243328536216. Its totient is φ = 243302618104.

The previous prime is 243315577157. The next prime is 243315577201. The reversal of 243315577159 is 951775513342.

243315577159 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 243315577159 - 2¹ = 243315577157 is a prime.

It is a super-2 number, since 2×243315577159² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243315577157) 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 3 ways as a sum of consecutive naturals, for example, 6451324 + ... + 6488929.

It is an arithmetic number, because the mean of its divisors is an integer number (60832134054).

Almost surely, 2^243315577159 is an apocalyptic number.

243315577159 is a deficient number, since it is larger than the sum of its proper divisors (12959057).

243315577159 is a wasteful number, since it uses less digits than its factorization.

243315577159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12959056.

The product of its digits is 3969000, while the sum is 52.

The spelling of 243315577159 in words is "two hundred forty-three billion, three hundred fifteen million, five hundred seventy-seven thousand, one hundred fifty-nine".