13016505 has 32 divisors (see below), whose sum is σ = 22498560. Its totient is φ = 6406400.

The previous prime is 13016477. The next prime is 13016513. The reversal of 13016505 is 50561031.

It is a happy number.

It is not a de Polignac number, because 13016505 - 2⁵ = 13016473 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9355 + ... + 10655.

It is an arithmetic number, because the mean of its divisors is an integer number (703080).

Almost surely, 2^13016505 is an apocalyptic number.

13016505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13016505 is a deficient number, since it is larger than the sum of its proper divisors (9482055).

13016505 is a wasteful number, since it uses less digits than its factorization.

13016505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 13016505 is about 3607.8393811255. The cubic root of 13016505 is about 235.2329363785.

Adding to 13016505 its reverse (50561031), we get a palindrome (63577536).

The spelling of 13016505 in words is "thirteen million, sixteen thousand, five hundred five".