159009701 has 2 divisors, whose sum is σ = 159009702. Its totient is φ = 159009700.

The previous prime is 159009691. The next prime is 159009703. The reversal of 159009701 is 107900951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123321025 + 35688676 = 11105^2 + 5974^2 .

It is a cyclic number.

It is not a de Polignac number, because 159009701 - 2⁶ = 159009637 is a prime.

Together with 159009703, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159009703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79504850 + 79504851.

It is an arithmetic number, because the mean of its divisors is an integer number (79504851).

Almost surely, 2^159009701 is an apocalyptic number.

It is an amenable number.

159009701 is a deficient number, since it is larger than the sum of its proper divisors (1).

159009701 is an equidigital number, since it uses as much as digits as its factorization.

159009701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2835, while the sum is 32.

The square root of 159009701 is about 12609.9048767229. The cubic root of 159009701 is about 541.7611691316.

The spelling of 159009701 in words is "one hundred fifty-nine million, nine thousand, seven hundred one".