11116215 has 48 divisors (see below), whose sum is σ = 22273056. Its totient is φ = 5068800.

The previous prime is 11116201. The next prime is 11116219. The reversal of 11116215 is 51261111.

It is a happy number.

It is not a de Polignac number, because 11116215 - 2⁶ = 11116151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11116219) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7755 + ... + 9075.

It is an arithmetic number, because the mean of its divisors is an integer number (464022).

Almost surely, 2^11116215 is an apocalyptic number.

11116215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11116215 is an abundant number, since it is smaller than the sum of its proper divisors (11156841).

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

11116215 is a wasteful number, since it uses less digits than its factorization.

11116215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360 (or 1357 counting only the distinct ones).

The product of its digits is 60, while the sum is 18.

The square root of 11116215 is about 3334.0988287692. The cubic root of 11116215 is about 223.1784785778.

Adding to 11116215 its reverse (51261111), we get a palindrome (62377326).

Subtracting 11116215 from its reverse (51261111), we obtain a square (40144896 = 6336²).

The spelling of 11116215 in words is "eleven million, one hundred sixteen thousand, two hundred fifteen".