159141989 has 2 divisors, whose sum is σ = 159141990. Its totient is φ = 159141988.

The previous prime is 159141949. The next prime is 159142013. The reversal of 159141989 is 989141951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155201764 + 3940225 = 12458^2 + 1985^2 .

It is a cyclic number.

It is not a de Polignac number, because 159141989 - 2⁸ = 159141733 is a prime.

It is a super-2 number, since 2×159141989² = 50652345325752242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159141949) 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 as a sum of consecutive naturals, namely, 79570994 + 79570995.

It is an arithmetic number, because the mean of its divisors is an integer number (79570995).

Almost surely, 2^159141989 is an apocalyptic number.

It is an amenable number.

159141989 is a deficient number, since it is larger than the sum of its proper divisors (1).

159141989 is an equidigital number, since it uses as much as digits as its factorization.

159141989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 47.

The square root of 159141989 is about 12615.1491865931. The cubic root of 159141989 is about 541.9113667514.

It can be divided in two parts, 15914 and 1989, that multiplied together give a triangular number (31652946 = T₇₉₅₆).

The spelling of 159141989 in words is "one hundred fifty-nine million, one hundred forty-one thousand, nine hundred eighty-nine".