243115134145 has 16 divisors (see below), whose sum is σ = 314302931712. Its totient is φ = 179460676800.

The previous prime is 243115134139. The next prime is 243115134161. The reversal of 243115134145 is 541431511342.

It is not a de Polignac number, because 243115134145 - 2⁵ = 243115134113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243115134145.

It is an unprimeable number.

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, 567277 + ... + 898906.

It is an arithmetic number, because the mean of its divisors is an integer number (19643933232).

Almost surely, 2^243115134145 is an apocalyptic number.

It is an amenable number.

243115134145 is a deficient number, since it is larger than the sum of its proper divisors (71187797567).

243115134145 is a wasteful number, since it uses less digits than its factorization.

243115134145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468752.

The product of its digits is 28800, while the sum is 34.

Adding to 243115134145 its reverse (541431511342), we get a palindrome (784546645487).

The spelling of 243115134145 in words is "two hundred forty-three billion, one hundred fifteen million, one hundred thirty-four thousand, one hundred forty-five".