159180081 has 16 divisors (see below), whose sum is σ = 228863040. Its totient is φ = 98081280.

The previous prime is 159180059. The next prime is 159180097. The reversal of 159180081 is 180081951.

It is not a de Polignac number, because 159180081 - 2⁷ = 159179953 is a prime.

It is a super-2 number, since 2×159180081² = 50676596374333122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (159160081) 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, 31720 + ... + 36393.

It is an arithmetic number, because the mean of its divisors is an integer number (14303940).

Almost surely, 2^159180081 is an apocalyptic number.

It is an amenable number.

159180081 is a deficient number, since it is larger than the sum of its proper divisors (69682959).

159180081 is a wasteful number, since it uses less digits than its factorization.

159180081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68176.

The product of its (nonzero) digits is 2880, while the sum is 33.

The square root of 159180081 is about 12616.6588683375. The cubic root of 159180081 is about 541.9546003466.

The spelling of 159180081 in words is "one hundred fifty-nine million, one hundred eighty thousand, eighty-one".