68140801 has 2 divisors, whose sum is σ = 68140802. Its totient is φ = 68140800.

The previous prime is 68140781. The next prime is 68140817. The reversal of 68140801 is 10804186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54745201 + 13395600 = 7399^2 + 3660^2 .

It is a cyclic number.

It is not a de Polignac number, because 68140801 - 2⁷ = 68140673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68140801.

It is not a weakly prime, because it can be changed into another prime (68140841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34070400 + 34070401.

It is an arithmetic number, because the mean of its divisors is an integer number (34070401).

Almost surely, 2^68140801 is an apocalyptic number.

It is an amenable number.

68140801 is a deficient number, since it is larger than the sum of its proper divisors (1).

68140801 is an equidigital number, since it uses as much as digits as its factorization.

68140801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 68140801 is about 8254.7441510928. The cubic root of 68140801 is about 408.4470322096.

Adding to 68140801 its reverse (10804186), we get a palindrome (78944987).

The spelling of 68140801 in words is "sixty-eight million, one hundred forty thousand, eight hundred one".