13452209 has 4 divisors (see below), whose sum is σ = 14160240. Its totient is φ = 12744180.

The previous prime is 13452181. The next prime is 13452211. The reversal of 13452209 is 90225431.

13452209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13452209 - 2⁸ = 13451953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13452409) 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, 353987 + ... + 354024.

It is an arithmetic number, because the mean of its divisors is an integer number (3540060).

Almost surely, 2^13452209 is an apocalyptic number.

13452209 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13452209 is a deficient number, since it is larger than the sum of its proper divisors (708031).

13452209 is an equidigital number, since it uses as much as digits as its factorization.

13452209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708030.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 13452209 is about 3667.7253168688. The cubic root of 13452209 is about 237.8288497177.

The spelling of 13452209 in words is "thirteen million, four hundred fifty-two thousand, two hundred nine".