11537216 has 28 divisors (see below), whose sum is σ = 23225760. Its totient is φ = 5685120.

The previous prime is 11537213. The next prime is 11537221. The reversal of 11537216 is 61273511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11537213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3275 + ... + 5813.

Almost surely, 2^11537216 is an apocalyptic number.

11537216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11537216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11612880).

11537216 is an abundant number, since it is smaller than the sum of its proper divisors (11688544).

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

11537216 is an equidigital number, since it uses as much as digits as its factorization.

11537216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622 (or 2612 counting only the distinct ones).

The product of its digits is 1260, while the sum is 26.

The square root of 11537216 is about 3396.6477591885. The cubic root of 11537216 is about 225.9610970185.

The spelling of 11537216 in words is "eleven million, five hundred thirty-seven thousand, two hundred sixteen".