11215489 has 8 divisors (see below), whose sum is σ = 11822760. Its totient is φ = 10622976.

The previous prime is 11215483. The next prime is 11215507. The reversal of 11215489 is 98451211.

It is a happy number.

11215489 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2016400 + 9199089 = 1420^2 + 3033^2 .

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 11215489 - 2³ = 11215481 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 11215489.

It is not an unprimeable number, because it can be changed into a prime (11215481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2112 + ... + 5185.

It is an arithmetic number, because the mean of its divisors is an integer number (1477845).

Almost surely, 2^11215489 is an apocalyptic number.

It is an amenable number.

11215489 is a deficient number, since it is larger than the sum of its proper divisors (607271).

11215489 is an equidigital number, since it uses as much as digits as its factorization.

11215489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7379.

The product of its digits is 2880, while the sum is 31.

The square root of 11215489 is about 3348.9534186071. The cubic root of 11215489 is about 223.8408800326.

The spelling of 11215489 in words is "eleven million, two hundred fifteen thousand, four hundred eighty-nine".