68117185 has 16 divisors (see below), whose sum is σ = 88372800. Its totient is φ = 50227776.

The previous prime is 68117171. The next prime is 68117209. The reversal of 68117185 is 58171186.

It is a cyclic number.

It is not a de Polignac number, because 68117185 - 2¹¹ = 68115137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

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 15 ways as a sum of consecutive naturals, for example, 6175 + ... + 13204.

It is an arithmetic number, because the mean of its divisors is an integer number (5523300).

Almost surely, 2^68117185 is an apocalyptic number.

It is an amenable number.

68117185 is a deficient number, since it is larger than the sum of its proper divisors (20255615).

68117185 is a wasteful number, since it uses less digits than its factorization.

68117185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19440.

The product of its digits is 13440, while the sum is 37.

The square root of 68117185 is about 8253.3135769823. The cubic root of 68117185 is about 408.3998407103.

The spelling of 68117185 in words is "sixty-eight million, one hundred seventeen thousand, one hundred eighty-five".