159681234 has 16 divisors (see below), whose sum is σ = 324129888. Its totient is φ = 52432512.

The previous prime is 159681211. The next prime is 159681241. The reversal of 159681234 is 432186951.

It is a junction number, because it is equal to n+sod(n) for n = 159681192 and 159681201.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 198207 + ... + 199010.

It is an arithmetic number, because the mean of its divisors is an integer number (20258118).

Almost surely, 2^159681234 is an apocalyptic number.

159681234 is an abundant number, since it is smaller than the sum of its proper divisors (164448654).

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

159681234 is a wasteful number, since it uses less digits than its factorization.

159681234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397289.

The product of its digits is 51840, while the sum is 39.

The square root of 159681234 is about 12636.5040260350. The cubic root of 159681234 is about 542.5227569435.

The spelling of 159681234 in words is "one hundred fifty-nine million, six hundred eighty-one thousand, two hundred thirty-four".