11219305 has 8 divisors (see below), whose sum is σ = 13717512. Its totient is φ = 8805888.

The previous prime is 11219293. The next prime is 11219309. The reversal of 11219305 is 50391211.

11219305 is digitally balanced in base 2, 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 3717184 + 7502121 = 1928^2 + 2739^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11219305 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11219309) 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, 20904 + ... + 21433.

It is an arithmetic number, because the mean of its divisors is an integer number (1714689).

Almost surely, 2^11219305 is an apocalyptic number.

It is an amenable number.

11219305 is a deficient number, since it is larger than the sum of its proper divisors (2498207).

11219305 is an equidigital number, since it uses as much as digits as its factorization.

11219305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42395.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 11219305 is about 3349.5231003831. The cubic root of 11219305 is about 223.8662639738.

It can be divided in two parts, 112 and 19305, that multiplied together give a triangular number (2162160 = T₂₀₇₉).

The spelling of 11219305 in words is "eleven million, two hundred nineteen thousand, three hundred five".