13029209 has 4 divisors (see below), whose sum is σ = 13055616. Its totient is φ = 13002804.

The previous prime is 13029197. The next prime is 13029223. The reversal of 13029209 is 90292031.

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 a de Polignac number, because none of the positive numbers 2^k-13029209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (13029299) 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, 12449 + ... + 13454.

It is an arithmetic number, because the mean of its divisors is an integer number (3263904).

Almost surely, 2^13029209 is an apocalyptic number.

It is an amenable number.

13029209 is a deficient number, since it is larger than the sum of its proper divisors (26407).

13029209 is an equidigital number, since it uses as much as digits as its factorization.

13029209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26406.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 13029209 is about 3609.5995622783. The cubic root of 13029209 is about 235.3094399544.

The spelling of 13029209 in words is "thirteen million, twenty-nine thousand, two hundred nine".