13016209 has 2 divisors, whose sum is σ = 13016210. Its totient is φ = 13016208.

The previous prime is 13016207. The next prime is 13016231. The reversal of 13016209 is 90261031.

It is an a-pointer prime, because the next prime (13016231) can be obtained adding 13016209 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12816400 + 199809 = 3580^2 + 447^2 .

It is a cyclic number.

It is not a de Polignac number, because 13016209 - 2¹ = 13016207 is a prime.

Together with 13016207, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13016209.

It is not a weakly prime, because it can be changed into another prime (13016207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6508104 + 6508105.

It is an arithmetic number, because the mean of its divisors is an integer number (6508105).

Almost surely, 2^13016209 is an apocalyptic number.

It is an amenable number.

13016209 is a deficient number, since it is larger than the sum of its proper divisors (1).

13016209 is an equidigital number, since it uses as much as digits as its factorization.

13016209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 13016209 is about 3607.7983591104. The cubic root of 13016209 is about 235.2311532712.

It can be divided in two parts, 13016 and 209, that added together give a square (13225 = 115²).

The spelling of 13016209 in words is "thirteen million, sixteen thousand, two hundred nine".