159538687 has 16 divisors (see below), whose sum is σ = 209376000. Its totient is φ = 117771840.

The previous prime is 159538681. The next prime is 159538721. The reversal of 159538687 is 786835951.

It is a cyclic number.

It is not a de Polignac number, because 159538687 - 2⁷ = 159538559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159538681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53062 + ... + 55987.

It is an arithmetic number, because the mean of its divisors is an integer number (13086000).

Almost surely, 2^159538687 is an apocalyptic number.

159538687 is a deficient number, since it is larger than the sum of its proper divisors (49837313).

159538687 is a wasteful number, since it uses less digits than its factorization.

159538687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109086.

The product of its digits is 1814400, while the sum is 52.

The square root of 159538687 is about 12630.8624804484. The cubic root of 159538687 is about 542.3612726890.

The spelling of 159538687 in words is "one hundred fifty-nine million, five hundred thirty-eight thousand, six hundred eighty-seven".