159065009 has 2 divisors, whose sum is σ = 159065010. Its totient is φ = 159065008.

The previous prime is 159064973. The next prime is 159065069. The reversal of 159065009 is 900560951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156175009 + 2890000 = 12497^2 + 1700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159065009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 159065009.

It is not a weakly prime, because it can be changed into another prime (159065069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79532504 + 79532505.

It is an arithmetic number, because the mean of its divisors is an integer number (79532505).

Almost surely, 2^159065009 is an apocalyptic number.

It is an amenable number.

159065009 is a deficient number, since it is larger than the sum of its proper divisors (1).

159065009 is an equidigital number, since it uses as much as digits as its factorization.

159065009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12150, while the sum is 35.

The square root of 159065009 is about 12612.0977240109. The cubic root of 159065009 is about 541.8239750550.

The spelling of 159065009 in words is "one hundred fifty-nine million, sixty-five thousand, nine".