68293129 has 2 divisors, whose sum is σ = 68293130. Its totient is φ = 68293128.

The previous prime is 68293111. The next prime is 68293133. The reversal of 68293129 is 92139286.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34245904 + 34047225 = 5852^2 + 5835^2 .

It is a cyclic number.

It is not a de Polignac number, because 68293129 - 2¹¹ = 68291081 is a prime.

It is a super-2 number, since 2×68293129² = 9327902937221282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68293091 and 68293100.

It is not a weakly prime, because it can be changed into another prime (68293109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34146564 + 34146565.

It is an arithmetic number, because the mean of its divisors is an integer number (34146565).

Almost surely, 2^68293129 is an apocalyptic number.

It is an amenable number.

68293129 is a deficient number, since it is larger than the sum of its proper divisors (1).

68293129 is an equidigital number, since it uses as much as digits as its factorization.

68293129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 40.

The square root of 68293129 is about 8263.9656945077. The cubic root of 68293129 is about 408.7511652870.

The spelling of 68293129 in words is "sixty-eight million, two hundred ninety-three thousand, one hundred twenty-nine".