68000129 has 2 divisors, whose sum is σ = 68000130. Its totient is φ = 68000128.

The previous prime is 68000077. The next prime is 68000137. The reversal of 68000129 is 92100086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40195600 + 27804529 = 6340^2 + 5273^2 .

It is a cyclic number.

It is not a de Polignac number, because 68000129 - 2¹⁶ = 67934593 is a prime.

It is a Chen prime.

It is equal to p_4007348 and since 68000129 and 4007348 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 68000098 and 68000107.

It is not a weakly prime, because it can be changed into another prime (68000729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34000064 + 34000065.

It is an arithmetic number, because the mean of its divisors is an integer number (34000065).

Almost surely, 2^68000129 is an apocalyptic number.

It is an amenable number.

68000129 is a deficient number, since it is larger than the sum of its proper divisors (1).

68000129 is an equidigital number, since it uses as much as digits as its factorization.

68000129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 68000129 is about 8246.2190730055. The cubic root of 68000129 is about 408.1657682962.

The spelling of 68000129 in words is "sixty-eight million, one hundred twenty-nine", and thus it is an aban number.