159330989 has 2 divisors, whose sum is σ = 159330990. Its totient is φ = 159330988.

The previous prime is 159330947. The next prime is 159331001. The reversal of 159330989 is 989033951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150675625 + 8655364 = 12275^2 + 2942^2 .

It is a cyclic number.

It is not a de Polignac number, because 159330989 - 2⁸ = 159330733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159330289) 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 as a sum of consecutive naturals, namely, 79665494 + 79665495.

It is an arithmetic number, because the mean of its divisors is an integer number (79665495).

Almost surely, 2^159330989 is an apocalyptic number.

It is an amenable number.

159330989 is a deficient number, since it is larger than the sum of its proper divisors (1).

159330989 is an equidigital number, since it uses as much as digits as its factorization.

159330989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 262440, while the sum is 47.

The square root of 159330989 is about 12622.6379572576. The cubic root of 159330989 is about 542.1258099035.

The spelling of 159330989 in words is "one hundred fifty-nine million, three hundred thirty thousand, nine hundred eighty-nine".