68068143 has 24 divisors (see below), whose sum is σ = 115511760. Its totient is φ = 38079360.

The previous prime is 68068139. The next prime is 68068163. The reversal of 68068143 is 34186086.

It is a happy number.

It is not a de Polignac number, because 68068143 - 2² = 68068139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68068098 and 68068107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68068103) 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 in 23 ways as a sum of consecutive naturals, for example, 25158 + ... + 27731.

It is an arithmetic number, because the mean of its divisors is an integer number (4812990).

Almost surely, 2^68068143 is an apocalyptic number.

68068143 is a deficient number, since it is larger than the sum of its proper divisors (47443617).

68068143 is a wasteful number, since it uses less digits than its factorization.

68068143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52919 (or 52916 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 68068143 is about 8250.3419929116. The cubic root of 68068143 is about 408.3018059605.

The spelling of 68068143 in words is "sixty-eight million, sixty-eight thousand, one hundred forty-three".