68141669 has 2 divisors, whose sum is σ = 68141670. Its totient is φ = 68141668.

The previous prime is 68141651. The next prime is 68141683. The reversal of 68141669 is 96614186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40157569 + 27984100 = 6337^2 + 5290^2 .

It is a cyclic number.

It is not a de Polignac number, because 68141669 - 2¹⁶ = 68076133 is a prime.

It is a super-2 number, since 2×68141669² = 9286574108211122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68141629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34070834 + 34070835.

It is an arithmetic number, because the mean of its divisors is an integer number (34070835).

Almost surely, 2^68141669 is an apocalyptic number.

It is an amenable number.

68141669 is a deficient number, since it is larger than the sum of its proper divisors (1).

68141669 is an equidigital number, since it uses as much as digits as its factorization.

68141669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 41.

The square root of 68141669 is about 8254.7967267523. The cubic root of 68141669 is about 408.4487665132.

The spelling of 68141669 in words is "sixty-eight million, one hundred forty-one thousand, six hundred sixty-nine".