11215249 has 4 divisors (see below), whose sum is σ = 11239936. Its totient is φ = 11190564.

The previous prime is 11215247. The next prime is 11215271. The reversal of 11215249 is 94251211.

It is a happy number.

11215249 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11215249 - 2¹ = 11215247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11215247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11649 + ... + 12574.

It is an arithmetic number, because the mean of its divisors is an integer number (2809984).

Almost surely, 2^11215249 is an apocalyptic number.

It is an amenable number.

11215249 is a deficient number, since it is larger than the sum of its proper divisors (24687).

11215249 is an equidigital number, since it uses as much as digits as its factorization.

11215249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24686.

The product of its digits is 720, while the sum is 25.

The square root of 11215249 is about 3348.9175863255. The cubic root of 11215249 is about 223.8392833659.

The spelling of 11215249 in words is "eleven million, two hundred fifteen thousand, two hundred forty-nine".