13415216 has 20 divisors (see below), whose sum is σ = 27360600. Its totient is φ = 6354432.

The previous prime is 13415189. The next prime is 13415231. The reversal of 13415216 is 61251431.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 13415191 and 13415200.

It is an unprimeable number.

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, 21761 + ... + 22368.

It is an arithmetic number, because the mean of its divisors is an integer number (1368030).

Almost surely, 2^13415216 is an apocalyptic number.

13415216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13415216 is an abundant number, since it is smaller than the sum of its proper divisors (13945384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13415216 is a wasteful number, since it uses less digits than its factorization.

13415216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44156 (or 44150 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 13415216 is about 3662.6788010963. The cubic root of 13415216 is about 237.6106431839.

Adding to 13415216 its reverse (61251431), we get a palindrome (74666647).

It can be divided in two parts, 13415 and 216, that added together give a palindrome (13631).

The spelling of 13415216 in words is "thirteen million, four hundred fifteen thousand, two hundred sixteen".