169361282009 has 2 divisors, whose sum is σ = 169361282010. Its totient is φ = 169361282008.

The previous prime is 169361281981. The next prime is 169361282087. The reversal of 169361282009 is 900282163961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146980224400 + 22381057609 = 383380^2 + 149603^2 .

It is a cyclic number.

It is not a de Polignac number, because 169361282009 - 2²⁴ = 169344504793 is a prime.

It is not a weakly prime, because it can be changed into another prime (169361282309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84680641004 + 84680641005.

It is an arithmetic number, because the mean of its divisors is an integer number (84680641005).

Almost surely, 2^169361282009 is an apocalyptic number.

It is an amenable number.

169361282009 is a deficient number, since it is larger than the sum of its proper divisors (1).

169361282009 is an equidigital number, since it uses as much as digits as its factorization.

169361282009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 47.

The spelling of 169361282009 in words is "one hundred sixty-nine billion, three hundred sixty-one million, two hundred eighty-two thousand, nine".