12615238147 has 8 divisors (see below), whose sum is σ = 12641684400. Its totient is φ = 12588812544.

The previous prime is 12615238123. The next prime is 12615238193. The reversal of 12615238147 is 74183251621.

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 12615238147 - 2⁷ = 12615238019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12615338147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1902604 + ... + 1909222.

It is an arithmetic number, because the mean of its divisors is an integer number (1580210550).

Almost surely, 2^12615238147 is an apocalyptic number.

12615238147 is a deficient number, since it is larger than the sum of its proper divisors (26446253).

12615238147 is an equidigital number, since it uses as much as digits as its factorization.

12615238147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10325.

The product of its digits is 80640, while the sum is 40.

Adding to 12615238147 its reverse (74183251621), we get a palindrome (86798489768).

The spelling of 12615238147 in words is "twelve billion, six hundred fifteen million, two hundred thirty-eight thousand, one hundred forty-seven".