1306169 has 2 divisors, whose sum is σ = 1306170. Its totient is φ = 1306168.

The previous prime is 1306159. The next prime is 1306181. The reversal of 1306169 is 9616031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1155625 + 150544 = 1075^2 + 388^2 .

It is an emirp because it is prime and its reverse (9616031) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1306169 is a prime.

It is a super-2 number, since 2×1306169² = 3412154913122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1306139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653084 + 653085.

It is an arithmetic number, because the mean of its divisors is an integer number (653085).

2^1306169 is an apocalyptic number.

It is an amenable number.

1306169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1306169 is an equidigital number, since it uses as much as digits as its factorization.

1306169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 1306169 is about 1142.8775087471. The cubic root of 1306169 is about 109.3116519156.

The spelling of 1306169 in words is "one million, three hundred six thousand, one hundred sixty-nine".