13632109 has 4 divisors (see below), whose sum is σ = 13662016. Its totient is φ = 13602204.

The previous prime is 13632107. The next prime is 13632133. The reversal of 13632109 is 90123631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13632109 - 2¹ = 13632107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13632107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14259 + ... + 15184.

It is an arithmetic number, because the mean of its divisors is an integer number (3415504).

Almost surely, 2^13632109 is an apocalyptic number.

It is an amenable number.

13632109 is a deficient number, since it is larger than the sum of its proper divisors (29907).

13632109 is an equidigital number, since it uses as much as digits as its factorization.

13632109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29906.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 13632109 is about 3692.1686039508. The cubic root of 13632109 is about 238.8843414875.

The spelling of 13632109 in words is "thirteen million, six hundred thirty-two thousand, one hundred nine".