243115545315 has 8 divisors (see below), whose sum is σ = 388984872528. Its totient is φ = 129661624160.

The previous prime is 243115545311. The next prime is 243115545331. The reversal of 243115545315 is 513545511342.

243115545315 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 not a de Polignac number, because 243115545315 - 2² = 243115545311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243115545311) 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, 8103851496 + ... + 8103851525.

It is an arithmetic number, because the mean of its divisors is an integer number (48623109066).

Almost surely, 2^243115545315 is an apocalyptic number.

243115545315 is a deficient number, since it is larger than the sum of its proper divisors (145869327213).

243115545315 is a wasteful number, since it uses less digits than its factorization.

243115545315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16207703029.

The product of its digits is 180000, while the sum is 39.

The spelling of 243115545315 in words is "two hundred forty-three billion, one hundred fifteen million, five hundred forty-five thousand, three hundred fifteen".