159344639 has 2 divisors, whose sum is σ = 159344640. Its totient is φ = 159344638.

The previous prime is 159344609. The next prime is 159344641. The reversal of 159344639 is 936443951.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 159344639 - 2²⁰ = 158296063 is a prime.

It is a Sophie Germain prime.

Together with 159344641, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 159344639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159344609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79672319 + 79672320.

It is an arithmetic number, because the mean of its divisors is an integer number (79672320).

Almost surely, 2^159344639 is an apocalyptic number.

159344639 is a deficient number, since it is larger than the sum of its proper divisors (1).

159344639 is an equidigital number, since it uses as much as digits as its factorization.

159344639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 44.

The square root of 159344639 is about 12623.1786408971. The cubic root of 159344639 is about 542.1412908969.

The spelling of 159344639 in words is "one hundred fifty-nine million, three hundred forty-four thousand, six hundred thirty-nine".