68606129 has 2 divisors, whose sum is σ = 68606130. Its totient is φ = 68606128.

The previous prime is 68606099. The next prime is 68606143. The reversal of 68606129 is 92160686.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54051904 + 14554225 = 7352^2 + 3815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68606129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68606092 and 68606101.

It is not a weakly prime, because it can be changed into another prime (68606189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34303064 + 34303065.

It is an arithmetic number, because the mean of its divisors is an integer number (34303065).

Almost surely, 2^68606129 is an apocalyptic number.

It is an amenable number.

68606129 is a deficient number, since it is larger than the sum of its proper divisors (1).

68606129 is an equidigital number, since it uses as much as digits as its factorization.

68606129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 68606129 is about 8282.8816845347. The cubic root of 68606129 is about 409.3746743505.

The spelling of 68606129 in words is "sixty-eight million, six hundred six thousand, one hundred twenty-nine".