13601216 has 28 divisors (see below), whose sum is σ = 27139392. Its totient is φ = 6763008.

The previous prime is 13601213. The next prime is 13601221. The reversal of 13601216 is 61210631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13601213) by changing a digit.

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, 13796 + ... + 14748.

It is an arithmetic number, because the mean of its divisors is an integer number (969264).

Almost surely, 2^13601216 is an apocalyptic number.

13601216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13601216 is a deficient number, since it is larger than the sum of its proper divisors (13538176).

13601216 is an equidigital number, since it uses as much as digits as its factorization.

13601216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188 (or 1178 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 13601216 is about 3687.9826463800. The cubic root of 13601216 is about 238.7037522693.

Adding to 13601216 its reverse (61210631), we get a palindrome (74811847).

The spelling of 13601216 in words is "thirteen million, six hundred one thousand, two hundred sixteen".