13237216 has 24 divisors (see below), whose sum is σ = 26142480. Its totient is φ = 6597888.

The previous prime is 13237207. The next prime is 13237261. The reversal of 13237216 is 61273231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17845 + ... + 18571.

It is an arithmetic number, because the mean of its divisors is an integer number (1089270).

Almost surely, 2^13237216 is an apocalyptic number.

13237216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13237216 is a deficient number, since it is larger than the sum of its proper divisors (12905264).

13237216 is an equidigital number, since it uses as much as digits as its factorization.

13237216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306 (or 1298 counting only the distinct ones).

The product of its digits is 1512, while the sum is 25.

The square root of 13237216 is about 3638.2985034216. The cubic root of 13237216 is about 236.5550471026. Note that the first 3 decimals are identical.

The spelling of 13237216 in words is "thirteen million, two hundred thirty-seven thousand, two hundred sixteen".