159849689 has 2 divisors, whose sum is σ = 159849690. Its totient is φ = 159849688.

The previous prime is 159849667. The next prime is 159849713. The reversal of 159849689 is 986948951.

159849689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159769600 + 80089 = 12640^2 + 283^2 .

It is a cyclic number.

It is not a de Polignac number, because 159849689 - 2⁸ = 159849433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (159849649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79924844 + 79924845.

It is an arithmetic number, because the mean of its divisors is an integer number (79924845).

Almost surely, 2^159849689 is an apocalyptic number.

It is an amenable number.

159849689 is a deficient number, since it is larger than the sum of its proper divisors (1).

159849689 is an equidigital number, since it uses as much as digits as its factorization.

159849689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5598720, while the sum is 59.

The square root of 159849689 is about 12643.1676806092. The cubic root of 159849689 is about 542.7134672108.

The spelling of 159849689 in words is "one hundred fifty-nine million, eight hundred forty-nine thousand, six hundred eighty-nine".