159061009 has 2 divisors, whose sum is σ = 159061010. Its totient is φ = 159061008.

The previous prime is 159060997. The next prime is 159061037. The reversal of 159061009 is 900160951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158256400 + 804609 = 12580^2 + 897^2 .

It is a cyclic number.

It is not a de Polignac number, because 159061009 - 2⁹ = 159060497 is a prime.

It is not a weakly prime, because it can be changed into another prime (159061069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79530504 + 79530505.

It is an arithmetic number, because the mean of its divisors is an integer number (79530505).

Almost surely, 2^159061009 is an apocalyptic number.

It is an amenable number.

159061009 is a deficient number, since it is larger than the sum of its proper divisors (1).

159061009 is an equidigital number, since it uses as much as digits as its factorization.

159061009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 159061009 is about 12611.9391451117. The cubic root of 159061009 is about 541.8194332766.

The spelling of 159061009 in words is "one hundred fifty-nine million, sixty-one thousand, nine".