12615238145 has 8 divisors (see below), whose sum is σ = 15796472256. Its totient is φ = 9653399536.

The previous prime is 12615238123. The next prime is 12615238193. The reversal of 12615238145 is 54183251621.

12615238145 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 a cyclic number.

It is not a de Polignac number, because 12615238145 - 2¹⁰ = 12615237121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12615238099 and 12615238108.

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 7 ways as a sum of consecutive naturals, for example, 54848747 + ... + 54848976.

It is an arithmetic number, because the mean of its divisors is an integer number (1974559032).

Almost surely, 2^12615238145 is an apocalyptic number.

It is an amenable number.

12615238145 is a deficient number, since it is larger than the sum of its proper divisors (3181234111).

12615238145 is a wasteful number, since it uses less digits than its factorization.

12615238145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109697751.

The product of its digits is 57600, while the sum is 38.

Adding to 12615238145 its reverse (54183251621), we get a palindrome (66798489766).

The spelling of 12615238145 in words is "twelve billion, six hundred fifteen million, two hundred thirty-eight thousand, one hundred forty-five".