6513186139 has 2 divisors, whose sum is σ = 6513186140. Its totient is φ = 6513186138.

The previous prime is 6513186137. The next prime is 6513186167. The reversal of 6513186139 is 9316813156.

It is a happy number.

6513186139 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6513186139 - 2¹ = 6513186137 is a prime.

Together with 6513186137, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 6513186095 and 6513186104.

It is not a weakly prime, because it can be changed into another prime (6513186137) by changing a digit.

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 as a sum of consecutive naturals, namely, 3256593069 + 3256593070.

It is an arithmetic number, because the mean of its divisors is an integer number (3256593070).

Almost surely, 2^6513186139 is an apocalyptic number.

6513186139 is a deficient number, since it is larger than the sum of its proper divisors (1).

6513186139 is an equidigital number, since it uses as much as digits as its factorization.

6513186139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 43.

The square root of 6513186139 is about 80704.3130136178. The cubic root of 6513186139 is about 1867.5167108952.

The spelling of 6513186139 in words is "six billion, five hundred thirteen million, one hundred eighty-six thousand, one hundred thirty-nine".