11155216 has 10 divisors (see below), whose sum is σ = 21613262. Its totient is φ = 5577600.

The previous prime is 11155201. The next prime is 11155219. The reversal of 11155216 is 61255111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10863616 + 291600 = 3296^2 + 540^2 .

It is not an unprimeable number, because it can be changed into a prime (11155219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348585 + ... + 348616.

Almost surely, 2^11155216 is an apocalyptic number.

11155216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11155216 is a deficient number, since it is larger than the sum of its proper divisors (10458046).

11155216 is an equidigital number, since it uses as much as digits as its factorization.

11155216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697209 (or 697203 counting only the distinct ones).

The product of its digits is 300, while the sum is 22.

The square root of 11155216 is about 3339.9425144754. The cubic root of 11155216 is about 223.4391795495.

The spelling of 11155216 in words is "eleven million, one hundred fifty-five thousand, two hundred sixteen".