13211009 has 8 divisors (see below), whose sum is σ = 15183168. Its totient is φ = 11260080.

The previous prime is 13210937. The next prime is 13211059. The reversal of 13211009 is 90011231.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13211009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13211059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3947 + ... + 6480.

It is an arithmetic number, because the mean of its divisors is an integer number (1897896).

Almost surely, 2^13211009 is an apocalyptic number.

It is an amenable number.

13211009 is a deficient number, since it is larger than the sum of its proper divisors (1972159).

13211009 is a wasteful number, since it uses less digits than its factorization.

13211009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10615.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 13211009 is about 3634.6951729134. The cubic root of 13211009 is about 236.3988336459.

The spelling of 13211009 in words is "thirteen million, two hundred eleven thousand, nine".