243530115343155 has 48 divisors (see below), whose sum is σ = 463654590347520. Its totient is φ = 117696934453824.

The previous prime is 243530115343043. The next prime is 243530115343157. The reversal of 243530115343155 is 551343511035342.

243530115343155 is a `hidden beast` number, since 2 + 4 + 3 + 5 + 30 + 1 + 1 + 534 + 31 + 55 = 666.

243530115343155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243530115343155 - 2²² = 243530111148851 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 243530115343155.

It is not an unprimeable number, because it can be changed into a prime (243530115343157) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6191948689 + ... + 6191988018.

It is an arithmetic number, because the mean of its divisors is an integer number (9659470632240).

Almost surely, 2^{243530115343155} is an apocalyptic number.

243530115343155 is a deficient number, since it is larger than the sum of its proper divisors (220124475004365).

243530115343155 is a wasteful number, since it uses less digits than its factorization.

243530115343155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12383936760 (or 12383936757 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 45.

Adding to 243530115343155 its reverse (551343511035342), we get a palindrome (794873626378497).

The spelling of 243530115343155 in words is "two hundred forty-three trillion, five hundred thirty billion, one hundred fifteen million, three hundred forty-three thousand, one hundred fifty-five".