13504301609 has 4 divisors (see below), whose sum is σ = 13689292116. Its totient is φ = 13319311104.

The previous prime is 13504301597. The next prime is 13504301621. The reversal of 13504301609 is 90610340531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90610340531 = 223 ⋅406324397.

It is an interprime number because it is at equal distance from previous prime (13504301597) and next prime (13504301621).

It can be written as a sum of positive squares in 2 ways, for example, as 7034512384 + 6469789225 = 83872^2 + 80435^2 .

It is a cyclic number.

It is not a de Polignac number, because 13504301609 - 2⁴ = 13504301593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13504301669) 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, 92495144 + ... + 92495289.

It is an arithmetic number, because the mean of its divisors is an integer number (3422323029).

Almost surely, 2^13504301609 is an apocalyptic number.

It is an amenable number.

13504301609 is a deficient number, since it is larger than the sum of its proper divisors (184990507).

13504301609 is an equidigital number, since it uses as much as digits as its factorization.

13504301609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184990506.

The product of its (nonzero) digits is 9720, while the sum is 32.

The spelling of 13504301609 in words is "thirteen billion, five hundred four million, three hundred one thousand, six hundred nine".