13195209 has 8 divisors (see below), whose sum is σ = 17671360. Its totient is φ = 8757936.

The previous prime is 13195207. The next prime is 13195211. The reversal of 13195209 is 90259131.

It is an interprime number because it is at equal distance from previous prime (13195207) and next prime (13195211).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13195209 - 2¹ = 13195207 is a prime.

It is a super-2 number, since 2×13195209² = 348227081107362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13195207) 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 in 7 ways as a sum of consecutive naturals, for example, 8917 + ... + 10290.

It is an arithmetic number, because the mean of its divisors is an integer number (2208920).

Almost surely, 2^13195209 is an apocalyptic number.

It is an amenable number.

13195209 is a deficient number, since it is larger than the sum of its proper divisors (4476151).

13195209 is a wasteful number, since it uses less digits than its factorization.

13195209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19439.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 13195209 is about 3632.5210254037. The cubic root of 13195209 is about 236.3045539032.

The spelling of 13195209 in words is "thirteen million, one hundred ninety-five thousand, two hundred nine".