80159172 has 12 divisors (see below), whose sum is σ = 187038096. Its totient is φ = 26719720.

The previous prime is 80159143. The next prime is 80159173. The reversal of 80159172 is 27195108.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (80159173) 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 3 ways as a sum of consecutive naturals, for example, 3339954 + ... + 3339977.

It is an arithmetic number, because the mean of its divisors is an integer number (15586508).

Almost surely, 2^80159172 is an apocalyptic number.

It is an amenable number.

80159172 is an abundant number, since it is smaller than the sum of its proper divisors (106878924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80159172 is a wasteful number, since it uses less digits than its factorization.

80159172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6679938 (or 6679936 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 80159172 is about 8953.1654737305. The cubic root of 80159172 is about 431.1725200860.

The spelling of 80159172 in words is "eighty million, one hundred fifty-nine thousand, one hundred seventy-two".