169535130209 has 2 divisors, whose sum is σ = 169535130210. Its totient is φ = 169535130208.

The previous prime is 169535130133. The next prime is 169535130227. The reversal of 169535130209 is 902031535961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97826323984 + 71708806225 = 312772^2 + 267785^2 .

It is an emirp because it is prime and its reverse (902031535961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 169535130209 - 2¹² = 169535126113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 169535130209.

It is not a weakly prime, because it can be changed into another prime (169535130409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84767565104 + 84767565105.

It is an arithmetic number, because the mean of its divisors is an integer number (84767565105).

Almost surely, 2^169535130209 is an apocalyptic number.

It is an amenable number.

169535130209 is a deficient number, since it is larger than the sum of its proper divisors (1).

169535130209 is an equidigital number, since it uses as much as digits as its factorization.

169535130209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 218700, while the sum is 44.

The spelling of 169535130209 in words is "one hundred sixty-nine billion, five hundred thirty-five million, one hundred thirty thousand, two hundred nine".