159221733 has 16 divisors (see below), whose sum is σ = 236983296. Its totient is φ = 94253040.

The previous prime is 159221701. The next prime is 159221749. The reversal of 159221733 is 337122951.

It is not a de Polignac number, because 159221733 - 2⁵ = 159221701 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 159221694 and 159221703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159222733) 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, 54685 + ... + 57522.

It is an arithmetic number, because the mean of its divisors is an integer number (14811456).

Almost surely, 2^159221733 is an apocalyptic number.

It is an amenable number.

159221733 is a deficient number, since it is larger than the sum of its proper divisors (77761563).

159221733 is a wasteful number, since it uses less digits than its factorization.

159221733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112264.

The product of its digits is 11340, while the sum is 33.

The square root of 159221733 is about 12618.3094351026. The cubic root of 159221733 is about 542.0018665713.

The spelling of 159221733 in words is "one hundred fifty-nine million, two hundred twenty-one thousand, seven hundred thirty-three".