12006131539 has 2 divisors, whose sum is σ = 12006131540. Its totient is φ = 12006131538.

The previous prime is 12006131509. The next prime is 12006131549. The reversal of 12006131539 is 93513160021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12006131539 - 2⁵ = 12006131507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12006131539.

It is not a weakly prime, because it can be changed into another prime (12006131509) 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 as a sum of consecutive naturals, namely, 6003065769 + 6003065770.

It is an arithmetic number, because the mean of its divisors is an integer number (6003065770).

Almost surely, 2^12006131539 is an apocalyptic number.

12006131539 is a deficient number, since it is larger than the sum of its proper divisors (1).

12006131539 is an equidigital number, since it uses as much as digits as its factorization.

12006131539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The spelling of 12006131539 in words is "twelve billion, six million, one hundred thirty-one thousand, five hundred thirty-nine".