13219609 has 8 divisors (see below), whose sum is σ = 14696192. Its totient is φ = 11808720.

The previous prime is 13219601. The next prime is 13219637. The reversal of 13219609 is 90691231.

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

It is a cyclic number.

It is not a de Polignac number, because 13219609 - 2³ = 13219601 is a prime.

It is a super-2 number, since 2×13219609² = 349516124225762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13219601) 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, 15999 + ... + 16804.

It is an arithmetic number, because the mean of its divisors is an integer number (1837024).

Almost surely, 2^13219609 is an apocalyptic number.

It is an amenable number.

13219609 is a deficient number, since it is larger than the sum of its proper divisors (1476583).

13219609 is a wasteful number, since it uses less digits than its factorization.

13219609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32847.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 13219609 is about 3635.8780232566. The cubic root of 13219609 is about 236.4501188777.

The spelling of 13219609 in words is "thirteen million, two hundred nineteen thousand, six hundred nine".