13429009 has 4 divisors (see below), whose sum is σ = 14649840. Its totient is φ = 12208180.

The previous prime is 13428977. The next prime is 13429027. The reversal of 13429009 is 90092431.

It is a happy number.

13429009 is digitally balanced in base 3, 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 13429009 - 2⁵ = 13428977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13429109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610399 + ... + 610420.

It is an arithmetic number, because the mean of its divisors is an integer number (3662460).

Almost surely, 2^13429009 is an apocalyptic number.

It is an amenable number.

13429009 is a deficient number, since it is larger than the sum of its proper divisors (1220831).

13429009 is a wasteful number, since it uses less digits than its factorization.

13429009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220830.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 13429009 is about 3664.5612288513. The cubic root of 13429009 is about 237.6920492784.

The spelling of 13429009 in words is "thirteen million, four hundred twenty-nine thousand, nine".