159985137 has 16 divisors (see below), whose sum is σ = 230068160. Its totient is φ = 98304192.

The previous prime is 159985129. The next prime is 159985139. The reversal of 159985137 is 731589951.

159985137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 159985137 - 2³ = 159985129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159985139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26814 + ... + 32232.

It is an arithmetic number, because the mean of its divisors is an integer number (14379260).

Almost surely, 2^159985137 is an apocalyptic number.

It is an amenable number.

159985137 is a deficient number, since it is larger than the sum of its proper divisors (70083023).

159985137 is a wasteful number, since it uses less digits than its factorization.

159985137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6192.

The product of its digits is 340200, while the sum is 48.

The square root of 159985137 is about 12648.5231153681. The cubic root of 159985137 is about 542.8667126363.

It can be divided in two parts, 1599 and 85137, that added together give a triangular number (86736 = T₄₁₆).

The spelling of 159985137 in words is "one hundred fifty-nine million, nine hundred eighty-five thousand, one hundred thirty-seven".