159812 has 6 divisors (see below), whose sum is σ = 279678. Its totient is φ = 79904.

The previous prime is 159811. The next prime is 159833. The reversal of 159812 is 218951.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 148996 + 10816 = 386^2 + 104^2 .

It is not an unprimeable number, because it can be changed into a prime (159811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19973 + ... + 19980.

It is an arithmetic number, because the mean of its divisors is an integer number (46613).

2¹⁵⁹⁸¹² is an apocalyptic number.

It is an amenable number.

159812 is a deficient number, since it is larger than the sum of its proper divisors (119866).

159812 is a wasteful number, since it uses less digits than its factorization.

159812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39957 (or 39955 counting only the distinct ones).

The product of its digits is 720, while the sum is 26.

The square root of 159812 is about 399.7649309282. The cubic root of 159812 is about 54.2670810605.

The spelling of 159812 in words is "one hundred fifty-nine thousand, eight hundred twelve".