13194909 has 24 divisors (see below), whose sum is σ = 23459072. Its totient is φ = 6959520.

The previous prime is 13194901. The next prime is 13194959. The reversal of 13194909 is 90949131.

It is not a de Polignac number, because 13194909 - 2³ = 13194901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13194901) 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 23 ways as a sum of consecutive naturals, for example, 7237 + ... + 8874.

Almost surely, 2^13194909 is an apocalyptic number.

It is an amenable number.

13194909 is a deficient number, since it is larger than the sum of its proper divisors (10264163).

13194909 is a wasteful number, since it uses less digits than its factorization.

13194909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16137 (or 16134 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 13194909 is about 3632.4797315333. The cubic root of 13194909 is about 236.3027630536.

The spelling of 13194909 in words is "thirteen million, one hundred ninety-four thousand, nine hundred nine".