68378145 has 16 divisors (see below), whose sum is σ = 119351232. Its totient is φ = 33152960.

The previous prime is 68378129. The next prime is 68378147. The reversal of 68378145 is 54187386.

It is not a de Polignac number, because 68378145 - 2⁴ = 68378129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68378097 and 68378106.

It is not an unprimeable number, because it can be changed into a prime (68378147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207042 + ... + 207371.

It is an arithmetic number, because the mean of its divisors is an integer number (7459452).

Almost surely, 2^68378145 is an apocalyptic number.

It is an amenable number.

68378145 is a deficient number, since it is larger than the sum of its proper divisors (50973087).

68378145 is a wasteful number, since it uses less digits than its factorization.

68378145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414432.

The product of its digits is 161280, while the sum is 42.

The square root of 68378145 is about 8269.1078720742. The cubic root of 68378145 is about 408.9207088397.

The spelling of 68378145 in words is "sixty-eight million, three hundred seventy-eight thousand, one hundred forty-five".