20159112 has 16 divisors (see below), whose sum is σ = 50397840. Its totient is φ = 6719696.

The previous prime is 20159107. The next prime is 20159119. The reversal of 20159112 is 21195102.

It is not an unprimeable number, because it can be changed into a prime (20159119) 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, 419958 + ... + 420005.

It is an arithmetic number, because the mean of its divisors is an integer number (3149865).

Almost surely, 2^20159112 is an apocalyptic number.

It is an amenable number.

20159112 is an abundant number, since it is smaller than the sum of its proper divisors (30238728).

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

20159112 is a wasteful number, since it uses less digits than its factorization.

20159112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839972 (or 839968 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 20159112 is about 4489.8899763803. The cubic root of 20159112 is about 272.1596885254.

The spelling of 20159112 in words is "twenty million, one hundred fifty-nine thousand, one hundred twelve".