159221834 has 8 divisors (see below), whose sum is σ = 242748228. Its totient is φ = 78305760.

The previous prime is 159221791. The next prime is 159221837. The reversal of 159221834 is 438122951.

It can be written as a sum of positive squares in 2 ways, for example, as 122655625 + 36566209 = 11075^2 + 6047^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 159221794 and 159221803.

It is not an unprimeable number, because it can be changed into a prime (159221837) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 652427 + ... + 652670.

Almost surely, 2^159221834 is an apocalyptic number.

159221834 is a deficient number, since it is larger than the sum of its proper divisors (83526394).

159221834 is a wasteful number, since it uses less digits than its factorization.

159221834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305160.

The product of its digits is 17280, while the sum is 35.

The square root of 159221834 is about 12618.3134372229. The cubic root of 159221834 is about 542.0019811749.

The spelling of 159221834 in words is "one hundred fifty-nine million, two hundred twenty-one thousand, eight hundred thirty-four".