12139743147 has 32 divisors (see below), whose sum is σ = 18577382400. Its totient is φ = 6907548288.

The previous prime is 12139743107. The next prime is 12139743151. The reversal of 12139743147 is 74134793121.

It is a happy number.

It is not a de Polignac number, because 12139743147 - 2¹⁵ = 12139710379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12139743099 and 12139743108.

It is not an unprimeable number, because it can be changed into a prime (12139743107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5952754 + ... + 5954792.

It is an arithmetic number, because the mean of its divisors is an integer number (580543200).

Almost surely, 2^12139743147 is an apocalyptic number.

12139743147 is a deficient number, since it is larger than the sum of its proper divisors (6437639253).

12139743147 is a wasteful number, since it uses less digits than its factorization.

12139743147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3115.

The product of its digits is 127008, while the sum is 42.

It can be divided in two parts, 1213974 and 3147, that added together give a palindrome (1217121).

The spelling of 12139743147 in words is "twelve billion, one hundred thirty-nine million, seven hundred forty-three thousand, one hundred forty-seven".