12000405147 has 8 divisors (see below), whose sum is σ = 16002787344. Its totient is φ = 7999146528.

The previous prime is 12000405139. The next prime is 12000405173. The reversal of 12000405147 is 74150400021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12000405147 - 2³ = 12000405139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12000405107) 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, 255648 + ... + 298925.

It is an arithmetic number, because the mean of its divisors is an integer number (2000348418).

Almost surely, 2^12000405147 is an apocalyptic number.

12000405147 is a deficient number, since it is larger than the sum of its proper divisors (4002382197).

12000405147 is an equidigital number, since it uses as much as digits as its factorization.

12000405147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561789.

The product of its (nonzero) digits is 1120, while the sum is 24.

Adding to 12000405147 its reverse (74150400021), we get a palindrome (86150805168).

The spelling of 12000405147 in words is "twelve billion, four hundred five thousand, one hundred forty-seven".