243115155136 has 56 divisors (see below), whose sum is σ = 556703463680. Its totient is φ = 103180614912.

The previous prime is 243115155011. The next prime is 243115155163. The reversal of 243115155136 is 631551511342.

243115155136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 243115155095 and 243115155104.

It is an unprimeable number.

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, 2588166 + ... + 2680453.

It is an arithmetic number, because the mean of its divisors is an integer number (9941133280).

Almost surely, 2^243115155136 is an apocalyptic number.

It is an amenable number.

243115155136 is an abundant number, since it is smaller than the sum of its proper divisors (313588308544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243115155136 is a wasteful number, since it uses less digits than its factorization.

243115155136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5268741 (or 5268731 counting only the distinct ones).

The product of its digits is 54000, while the sum is 37.

Adding to 243115155136 its reverse (631551511342), we get a palindrome (874666666478).

The spelling of 243115155136 in words is "two hundred forty-three billion, one hundred fifteen million, one hundred fifty-five thousand, one hundred thirty-six".