13569009 has 8 divisors (see below), whose sum is σ = 19156320. Its totient is φ = 8513856.

The previous prime is 13568999. The next prime is 13569019. The reversal of 13569009 is 90096531.

It is an interprime number because it is at equal distance from previous prime (13568999) and next prime (13569019).

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

It is not a de Polignac number, because 13569009 - 2⁴ = 13568993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13569019) 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, 132979 + ... + 133080.

It is an arithmetic number, because the mean of its divisors is an integer number (2394540).

Almost surely, 2^13569009 is an apocalyptic number.

It is an amenable number.

13569009 is a deficient number, since it is larger than the sum of its proper divisors (5587311).

13569009 is a wasteful number, since it uses less digits than its factorization.

13569009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266079.

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 13569009 is about 3683.6135790824. The cubic root of 13569009 is about 238.5151905026.

The spelling of 13569009 in words is "thirteen million, five hundred sixty-nine thousand, nine".