159207195409 has 2 divisors, whose sum is σ = 159207195410. Its totient is φ = 159207195408.

The previous prime is 159207195361. The next prime is 159207195437. The reversal of 159207195409 is 904591702951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154348408384 + 4858787025 = 392872^2 + 69705^2 .

It is a cyclic number.

It is not a de Polignac number, because 159207195409 - 2⁹ = 159207194897 is a prime.

It is not a weakly prime, because it can be changed into another prime (159207195479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79603597704 + 79603597705.

It is an arithmetic number, because the mean of its divisors is an integer number (79603597705).

Almost surely, 2^159207195409 is an apocalyptic number.

It is an amenable number.

159207195409 is a deficient number, since it is larger than the sum of its proper divisors (1).

159207195409 is an equidigital number, since it uses as much as digits as its factorization.

159207195409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1020600, while the sum is 52.

The spelling of 159207195409 in words is "one hundred fifty-nine billion, two hundred seven million, one hundred ninety-five thousand, four hundred nine".