68181113 has 16 divisors (see below), whose sum is σ = 91545216. Its totient is φ = 49040640.

The previous prime is 68181089. The next prime is 68181119. The reversal of 68181113 is 31118186.

It is not a de Polignac number, because 68181113 - 2¹² = 68177017 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68181119) 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, 33056 + ... + 35057.

It is an arithmetic number, because the mean of its divisors is an integer number (5721576).

Almost surely, 2^68181113 is an apocalyptic number.

It is an amenable number.

68181113 is a deficient number, since it is larger than the sum of its proper divisors (23364103).

68181113 is a wasteful number, since it uses less digits than its factorization.

68181113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68144.

The product of its digits is 1152, while the sum is 29.

The square root of 68181113 is about 8257.1855374577. The cubic root of 68181113 is about 408.5275618904.

Adding to 68181113 its reverse (31118186), we get a palindrome (99299299).

It can be divided in two parts, 68 and 181113, that added together give a palindrome (181181).

The spelling of 68181113 in words is "sixty-eight million, one hundred eighty-one thousand, one hundred thirteen".