68129186 has 8 divisors (see below), whose sum is σ = 103633344. Its totient is φ = 33584740.

The previous prime is 68129161. The next prime is 68129213. The reversal of 68129186 is 68192186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 239750 + ... + 240033.

It is an arithmetic number, because the mean of its divisors is an integer number (12954168).

Almost surely, 2^68129186 is an apocalyptic number.

68129186 is a deficient number, since it is larger than the sum of its proper divisors (35504158).

68129186 is a wasteful number, since it uses less digits than its factorization.

68129186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479856.

The product of its digits is 41472, while the sum is 41.

The square root of 68129186 is about 8254.0405862826. The cubic root of 68129186 is about 408.4238234918.

The spelling of 68129186 in words is "sixty-eight million, one hundred twenty-nine thousand, one hundred eighty-six".