159487956 has 18 divisors (see below), whose sum is σ = 403150202. Its totient is φ = 53162640.

The previous prime is 159487927. The next prime is 159487987. The reversal of 159487956 is 659784951.

159487956 is a `hidden beast` number, since 159 + 487 + 9 + 5 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 112784400 + 46703556 = 10620^2 + 6834^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2215075 + ... + 2215146.

Almost surely, 2^159487956 is an apocalyptic number.

It is an amenable number.

159487956 is an abundant number, since it is smaller than the sum of its proper divisors (243662246).

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

159487956 is a wasteful number, since it uses less digits than its factorization.

159487956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4430231 (or 4430226 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 54.

The square root of 159487956 is about 12628.8541047872. The cubic root of 159487956 is about 542.3037789087.

The spelling of 159487956 in words is "one hundred fifty-nine million, four hundred eighty-seven thousand, nine hundred fifty-six".