68859139 has 2 divisors, whose sum is σ = 68859140. Its totient is φ = 68859138.

The previous prime is 68859127. The next prime is 68859151. The reversal of 68859139 is 93195886.

It is a balanced prime because it is at equal distance from previous prime (68859127) and next prime (68859151).

It is a cyclic number.

It is not a de Polignac number, because 68859139 - 2⁹ = 68858627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68859092 and 68859101.

It is not a weakly prime, because it can be changed into another prime (68850139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34429569 + 34429570.

It is an arithmetic number, because the mean of its divisors is an integer number (34429570).

Almost surely, 2^68859139 is an apocalyptic number.

68859139 is a deficient number, since it is larger than the sum of its proper divisors (1).

68859139 is an equidigital number, since it uses as much as digits as its factorization.

It is an anagram of its base 11 representation: 68859139 = (35961988)₁₁.

68859139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 49.

The square root of 68859139 is about 8298.1406953606. The cubic root of 68859139 is about 409.8772962179.

The spelling of 68859139 in words is "sixty-eight million, eight hundred fifty-nine thousand, one hundred thirty-nine".