13361216 has 28 divisors (see below), whose sum is σ = 28925520. Its totient is φ = 6072960.

The previous prime is 13361213. The next prime is 13361219. The reversal of 13361216 is 61216331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13361213) and next prime (13361219).

It is a junction number, because it is equal to n+sod(n) for n = 13361191 and 13361200.

It is not an unprimeable number, because it can be changed into a prime (13361213) 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, 8786 + ... + 10193.

Almost surely, 2^13361216 is an apocalyptic number.

13361216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13361216 is an abundant number, since it is smaller than the sum of its proper divisors (15564304).

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

13361216 is a wasteful number, since it uses less digits than its factorization.

13361216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19002 (or 18992 counting only the distinct ones).

The product of its digits is 648, while the sum is 23.

The square root of 13361216 is about 3655.2997141137. The cubic root of 13361216 is about 237.2913979969.

Adding to 13361216 its reverse (61216331), we get a palindrome (74577547).

It can be divided in two parts, 1336 and 1216, that added together give a palindrome (2552).

The spelling of 13361216 in words is "thirteen million, three hundred sixty-one thousand, two hundred sixteen".