8117134439 has 2 divisors, whose sum is σ = 8117134440. Its totient is φ = 8117134438.

The previous prime is 8117134429. The next prime is 8117134453. The reversal of 8117134439 is 9344317118.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8117134439 - 2¹⁶ = 8117068903 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 8117134396 and 8117134405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8117134429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4058567219 + 4058567220.

It is an arithmetic number, because the mean of its divisors is an integer number (4058567220).

Almost surely, 2^8117134439 is an apocalyptic number.

8117134439 is a deficient number, since it is larger than the sum of its proper divisors (1).

8117134439 is an equidigital number, since it uses as much as digits as its factorization.

8117134439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 41.

The square root of 8117134439 is about 90095.1410399029. The cubic root of 8117134439 is about 2009.7139464872.

The spelling of 8117134439 in words is "eight billion, one hundred seventeen million, one hundred thirty-four thousand, four hundred thirty-nine".