13340509 has 16 divisors (see below), whose sum is σ = 16952320. Its totient is φ = 10212480.

The previous prime is 13340501. The next prime is 13340513. The reversal of 13340509 is 90504331.

It is a cyclic number.

It is not a de Polignac number, because 13340509 - 2³ = 13340501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13340501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457 + ... + 5185.

It is an arithmetic number, because the mean of its divisors is an integer number (1059520).

Almost surely, 2^13340509 is an apocalyptic number.

It is an amenable number.

13340509 is a deficient number, since it is larger than the sum of its proper divisors (3611811).

13340509 is a wasteful number, since it uses less digits than its factorization.

13340509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4780.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 13340509 is about 3652.4661531628. The cubic root of 13340509 is about 237.1687511384.

The spelling of 13340509 in words is "thirteen million, three hundred forty thousand, five hundred nine".