68814121 has 2 divisors, whose sum is σ = 68814122. Its totient is φ = 68814120.

The previous prime is 68814101. The next prime is 68814127. The reversal of 68814121 is 12141886.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35046400 + 33767721 = 5920^2 + 5811^2 .

It is a cyclic number.

It is not a de Polignac number, because 68814121 - 2⁹ = 68813609 is a prime.

It is not a weakly prime, because it can be changed into another prime (68814127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34407060 + 34407061.

It is an arithmetic number, because the mean of its divisors is an integer number (34407061).

Almost surely, 2^68814121 is an apocalyptic number.

It is an amenable number.

68814121 is a deficient number, since it is larger than the sum of its proper divisors (1).

68814121 is an equidigital number, since it uses as much as digits as its factorization.

68814121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3072, while the sum is 31.

The square root of 68814121 is about 8295.4277165195. The cubic root of 68814121 is about 409.7879549969.

The spelling of 68814121 in words is "sixty-eight million, eight hundred fourteen thousand, one hundred twenty-one".