11261216 has 12 divisors (see below), whose sum is σ = 22170582. Its totient is φ = 5630592.

The previous prime is 11261203. The next prime is 11261219. The reversal of 11261216 is 61216211.

It can be written as a sum of positive squares in only one way, i.e., 10627600 + 633616 = 3260^2 + 796^2 .

It is not an unprimeable number, because it can be changed into a prime (11261219) 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 as a sum of consecutive naturals, namely, 175925 + ... + 175988.

Almost surely, 2^11261216 is an apocalyptic number.

11261216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11261216 is a deficient number, since it is larger than the sum of its proper divisors (10909366).

11261216 is an equidigital number, since it uses as much as digits as its factorization.

11261216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351923 (or 351915 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

The square root of 11261216 is about 3355.7735322873. The cubic root of 11261216 is about 224.1446769442.

Adding to 11261216 its reverse (61216211), we get a palindrome (72477427).

The spelling of 11261216 in words is "eleven million, two hundred sixty-one thousand, two hundred sixteen".