11219447 has 2 divisors, whose sum is σ = 11219448. Its totient is φ = 11219446.

The previous prime is 11219441. The next prime is 11219459. The reversal of 11219447 is 74491211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11219447 is a prime.

It is a Chen prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11219441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5609723 + 5609724.

It is an arithmetic number, because the mean of its divisors is an integer number (5609724).

Almost surely, 2^11219447 is an apocalyptic number.

11219447 is a deficient number, since it is larger than the sum of its proper divisors (1).

11219447 is an equidigital number, since it uses as much as digits as its factorization.

11219447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 29.

The square root of 11219447 is about 3349.5442973634. The cubic root of 11219447 is about 223.8672084434.

The spelling of 11219447 in words is "eleven million, two hundred nineteen thousand, four hundred forty-seven".