68941129 has 2 divisors, whose sum is σ = 68941130. Its totient is φ = 68941128.

The previous prime is 68941121. The next prime is 68941141. The reversal of 68941129 is 92114986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56851600 + 12089529 = 7540^2 + 3477^2 .

It is a cyclic number.

It is not a de Polignac number, because 68941129 - 2³ = 68941121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68941091 and 68941100.

It is not a weakly prime, because it can be changed into another prime (68941121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34470564 + 34470565.

It is an arithmetic number, because the mean of its divisors is an integer number (34470565).

Almost surely, 2^68941129 is an apocalyptic number.

It is an amenable number.

68941129 is a deficient number, since it is larger than the sum of its proper divisors (1).

68941129 is an equidigital number, since it uses as much as digits as its factorization.

68941129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 40.

The square root of 68941129 is about 8303.0794889607. The cubic root of 68941129 is about 410.0399108481.

The spelling of 68941129 in words is "sixty-eight million, nine hundred forty-one thousand, one hundred twenty-nine".