68081121 has 16 divisors (see below), whose sum is σ = 101016000. Its totient is φ = 45317664.

The previous prime is 68081089. The next prime is 68081129. The reversal of 68081121 is 12118086.

It is not a de Polignac number, because 68081121 - 2⁵ = 68081089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (68081129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20805 + ... + 23853.

It is an arithmetic number, because the mean of its divisors is an integer number (6313500).

Almost surely, 2^68081121 is an apocalyptic number.

It is an amenable number.

68081121 is a deficient number, since it is larger than the sum of its proper divisors (32934879).

68081121 is a wasteful number, since it uses less digits than its factorization.

68081121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3885 (or 3879 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 68081121 is about 8251.1284682763. The cubic root of 68081121 is about 408.3277535079.

The spelling of 68081121 in words is "sixty-eight million, eighty-one thousand, one hundred twenty-one".