159439213 has 4 divisors (see below), whose sum is σ = 159899040. Its totient is φ = 158979388.

The previous prime is 159439123. The next prime is 159439237. The reversal of 159439213 is 312934951.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 159439213 - 2¹³ = 159431021 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 (159439513) 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, 229393 + ... + 230086.

It is an arithmetic number, because the mean of its divisors is an integer number (39974760).

Almost surely, 2^159439213 is an apocalyptic number.

It is an amenable number.

159439213 is a deficient number, since it is larger than the sum of its proper divisors (459827).

159439213 is an equidigital number, since it uses as much as digits as its factorization.

159439213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459826.

The product of its digits is 29160, while the sum is 37.

The square root of 159439213 is about 12626.9241306028. The cubic root of 159439213 is about 542.2485266563.

The spelling of 159439213 in words is "one hundred fifty-nine million, four hundred thirty-nine thousand, two hundred thirteen".