68159193 has 16 divisors (see below), whose sum is σ = 94350720. Its totient is φ = 43714944.

The previous prime is 68159191. The next prime is 68159197. The reversal of 68159193 is 39195186.

It is not a de Polignac number, because 68159193 - 2¹ = 68159191 is a prime.

It is a super-2 number, since 2×68159193² = 9291351180822498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68159191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25980 + ... + 28482.

It is an arithmetic number, because the mean of its divisors is an integer number (5896920).

Almost surely, 2^68159193 is an apocalyptic number.

It is an amenable number.

68159193 is a deficient number, since it is larger than the sum of its proper divisors (26191527).

68159193 is a wasteful number, since it uses less digits than its factorization.

68159193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2848.

The product of its digits is 58320, while the sum is 42.

The square root of 68159193 is about 8255.8581019783. The cubic root of 68159193 is about 408.4837771159.

The spelling of 68159193 in words is "sixty-eight million, one hundred fifty-nine thousand, one hundred ninety-three".