159448189 has 2 divisors, whose sum is σ = 159448190. Its totient is φ = 159448188.

The previous prime is 159448181. The next prime is 159448193. The reversal of 159448189 is 981844951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156500100 + 2948089 = 12510^2 + 1717^2 .

It is an emirp because it is prime and its reverse (981844951) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 159448189 - 2³ = 159448181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159448181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79724094 + 79724095.

It is an arithmetic number, because the mean of its divisors is an integer number (79724095).

Almost surely, 2^159448189 is an apocalyptic number.

It is an amenable number.

159448189 is a deficient number, since it is larger than the sum of its proper divisors (1).

159448189 is an equidigital number, since it uses as much as digits as its factorization.

159448189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 414720, while the sum is 49.

The square root of 159448189 is about 12627.2795565791. The cubic root of 159448189 is about 542.2587021778.

The spelling of 159448189 in words is "one hundred fifty-nine million, four hundred forty-eight thousand, one hundred eighty-nine".