11215243 has 8 divisors (see below), whose sum is σ = 12174848. Its totient is φ = 10269504.

The previous prime is 11215229. The next prime is 11215247. The reversal of 11215243 is 34251211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11215243 - 2¹³ = 11207051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11215243.

It is not an unprimeable number, because it can be changed into a prime (11215247) 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 in 7 ways as a sum of consecutive naturals, for example, 1746 + ... + 5047.

It is an arithmetic number, because the mean of its divisors is an integer number (1521856).

Almost surely, 2^11215243 is an apocalyptic number.

11215243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11215243 is a deficient number, since it is larger than the sum of its proper divisors (959605).

11215243 is a wasteful number, since it uses less digits than its factorization.

11215243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6933.

The product of its digits is 240, while the sum is 19.

The square root of 11215243 is about 3348.9166905135. The cubic root of 11215243 is about 223.8392434489.

Adding to 11215243 its reverse (34251211), we get a palindrome (45466454).

The spelling of 11215243 in words is "eleven million, two hundred fifteen thousand, two hundred forty-three".