8200068139 has 4 divisors (see below), whose sum is σ = 8234093560. Its totient is φ = 8166042720.

The previous prime is 8200068119. The next prime is 8200068143. The reversal of 8200068139 is 9318600028.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8200068139 is a prime.

It is a super-2 number, since 2×8200068139² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8200068098 and 8200068107.

It is not an unprimeable number, because it can be changed into a prime (8200068109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17012349 + ... + 17012830.

It is an arithmetic number, because the mean of its divisors is an integer number (2058523390).

Almost surely, 2^8200068139 is an apocalyptic number.

8200068139 is a deficient number, since it is larger than the sum of its proper divisors (34025421).

8200068139 is a wasteful number, since it uses less digits than its factorization.

8200068139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34025420.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 8200068139 is about 90554.2276152803. The cubic root of 8200068139 is about 2016.5352607439.

The spelling of 8200068139 in words is "eight billion, two hundred million, sixty-eight thousand, one hundred thirty-nine".