5247907139 has 2 divisors, whose sum is σ = 5247907140. Its totient is φ = 5247907138.

The previous prime is 5247907129. The next prime is 5247907169. The reversal of 5247907139 is 9317097425.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5247907139 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 5247907093 and 5247907102.

It is not a weakly prime, because it can be changed into another prime (5247907109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2623953569 + 2623953570.

It is an arithmetic number, because the mean of its divisors is an integer number (2623953570).

Almost surely, 2^5247907139 is an apocalyptic number.

5247907139 is a deficient number, since it is larger than the sum of its proper divisors (1).

5247907139 is an equidigital number, since it uses as much as digits as its factorization.

5247907139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 5247907139 is about 72442.4401783927. The cubic root of 5247907139 is about 1737.7823444275.

The spelling of 5247907139 in words is "five billion, two hundred forty-seven million, nine hundred seven thousand, one hundred thirty-nine".