859716139 has 2 divisors, whose sum is σ = 859716140. Its totient is φ = 859716138.

The previous prime is 859716133. The next prime is 859716181. The reversal of 859716139 is 931617958.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 859716139 - 2¹¹ = 859714091 is a prime.

It is a super-2 number, since 2×859716139² = 1478223679314134642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 859716092 and 859716101.

It is not a weakly prime, because it can be changed into another prime (859716133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429858069 + 429858070.

It is an arithmetic number, because the mean of its divisors is an integer number (429858070).

Almost surely, 2^859716139 is an apocalyptic number.

859716139 is a deficient number, since it is larger than the sum of its proper divisors (1).

859716139 is an equidigital number, since it uses as much as digits as its factorization.

859716139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 49.

The square root of 859716139 is about 29320.9164079160. The cubic root of 859716139 is about 950.8639007684.

The spelling of 859716139 in words is "eight hundred fifty-nine million, seven hundred sixteen thousand, one hundred thirty-nine".