8514660139 has 2 divisors, whose sum is σ = 8514660140. Its totient is φ = 8514660138.

The previous prime is 8514660083. The next prime is 8514660221. The reversal of 8514660139 is 9310664158.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8514660139 - 2¹⁵ = 8514627371 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8514660095 and 8514660104.

It is not a weakly prime, because it can be changed into another prime (8514660839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4257330069 + 4257330070.

It is an arithmetic number, because the mean of its divisors is an integer number (4257330070).

Almost surely, 2^8514660139 is an apocalyptic number.

8514660139 is a deficient number, since it is larger than the sum of its proper divisors (1).

8514660139 is an equidigital number, since it uses as much as digits as its factorization.

8514660139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 8514660139 is about 92274.9160877429. The cubic root of 8514660139 is about 2042.0001639581. Note that the first 3 decimals are identical.

The spelling of 8514660139 in words is "eight billion, five hundred fourteen million, six hundred sixty thousand, one hundred thirty-nine".