68159013 has 16 divisors (see below), whose sum is σ = 98017920. Its totient is φ = 41880384.

The previous prime is 68159009. The next prime is 68159017. The reversal of 68159013 is 31095186.

It is an interprime number because it is at equal distance from previous prime (68159009) and next prime (68159017).

It is not a de Polignac number, because 68159013 - 2² = 68159009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68159017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46983 + ... + 48411.

It is an arithmetic number, because the mean of its divisors is an integer number (6126120).

Almost surely, 2^68159013 is an apocalyptic number.

It is an amenable number.

68159013 is a deficient number, since it is larger than the sum of its proper divisors (29858907).

68159013 is a wasteful number, since it uses less digits than its factorization.

68159013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 68159013 is about 8255.8472006209. The cubic root of 68159013 is about 408.4834175305.

The spelling of 68159013 in words is "sixty-eight million, one hundred fifty-nine thousand, thirteen".