13409529 has 16 divisors (see below), whose sum is σ = 21322752. Its totient is φ = 7329168.

The previous prime is 13409491. The next prime is 13409531. The reversal of 13409529 is 92590431.

It is not a de Polignac number, because 13409529 - 2⁷ = 13409401 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13409529.

It is not an unprimeable number, because it can be changed into a prime (13404529) 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, 13399 + ... + 14364.

It is an arithmetic number, because the mean of its divisors is an integer number (1332672).

Almost surely, 2^13409529 is an apocalyptic number.

It is an amenable number.

13409529 is a deficient number, since it is larger than the sum of its proper divisors (7913223).

13409529 is a wasteful number, since it uses less digits than its factorization.

13409529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27796.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 13409529 is about 3661.9023744497. The cubic root of 13409529 is about 237.5770623426.

The spelling of 13409529 in words is "thirteen million, four hundred nine thousand, five hundred twenty-nine".