13034509 has 4 divisors (see below), whose sum is σ = 13044220. Its totient is φ = 13024800.

The previous prime is 13034507. The next prime is 13034519. The reversal of 13034509 is 90543031.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 90543031 = 359 ⋅252209.

It can be written as a sum of positive squares in 2 ways, for example, as 12938409 + 96100 = 3597^2 + 310^2 .

It is a cyclic number.

It is not a de Polignac number, because 13034509 - 2¹ = 13034507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13034501) 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, 2442 + ... + 5659.

It is an arithmetic number, because the mean of its divisors is an integer number (3261055).

Almost surely, 2^13034509 is an apocalyptic number.

It is an amenable number.

13034509 is a deficient number, since it is larger than the sum of its proper divisors (9711).

13034509 is an equidigital number, since it uses as much as digits as its factorization.

13034509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9710.

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

The square root of 13034509 is about 3610.3336410919. Note that the first 3 decimals coincide. The cubic root of 13034509 is about 235.3413418902.

The spelling of 13034509 in words is "thirteen million, thirty-four thousand, five hundred nine".