6939236147 has 2 divisors, whose sum is σ = 6939236148. Its totient is φ = 6939236146.

The previous prime is 6939236141. The next prime is 6939236167. The reversal of 6939236147 is 7416329396.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6939236147 - 2¹² = 6939232051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6939236095 and 6939236104.

It is not a weakly prime, because it can be changed into another prime (6939236141) 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, 3469618073 + 3469618074.

It is an arithmetic number, because the mean of its divisors is an integer number (3469618074).

Almost surely, 2^6939236147 is an apocalyptic number.

6939236147 is a deficient number, since it is larger than the sum of its proper divisors (1).

6939236147 is an equidigital number, since it uses as much as digits as its factorization.

6939236147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 50.

The square root of 6939236147 is about 83302.0776871742. The cubic root of 6939236147 is about 1907.3799906520.

The spelling of 6939236147 in words is "six billion, nine hundred thirty-nine million, two hundred thirty-six thousand, one hundred forty-seven".