13600505 has 4 divisors (see below), whose sum is σ = 16320612. Its totient is φ = 10880400.

The previous prime is 13600487. The next prime is 13600529. The reversal of 13600505 is 50500631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50500631 = 131 ⋅385501.

It can be written as a sum of positive squares in 2 ways, for example, as 10679824 + 2920681 = 3268^2 + 1709^2 .

It is not a de Polignac number, because 13600505 - 2¹² = 13596409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1360046 + ... + 1360055.

It is an arithmetic number, because the mean of its divisors is an integer number (4080153).

Almost surely, 2^13600505 is an apocalyptic number.

It is an amenable number.

13600505 is a deficient number, since it is larger than the sum of its proper divisors (2720107).

13600505 is an equidigital number, since it uses as much as digits as its factorization.

13600505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2720106.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 13600505 is about 3687.8862509573. The cubic root of 13600505 is about 238.6995928048.

The spelling of 13600505 in words is "thirteen million, six hundred thousand, five hundred five".