13716505 has 16 divisors (see below), whose sum is σ = 18123264. Its totient is φ = 9882880.

The previous prime is 13716491. The next prime is 13716511. The reversal of 13716505 is 50561731.

It is not a de Polignac number, because 13716505 - 2⁷ = 13716377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5112 + ... + 7318.

It is an arithmetic number, because the mean of its divisors is an integer number (1132704).

Almost surely, 2^13716505 is an apocalyptic number.

It is an amenable number.

13716505 is a deficient number, since it is larger than the sum of its proper divisors (4406759).

13716505 is a wasteful number, since it uses less digits than its factorization.

13716505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2336.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 13716505 is about 3703.5800247868. The cubic root of 13716505 is about 239.3763030331.

The spelling of 13716505 in words is "thirteen million, seven hundred sixteen thousand, five hundred five".