11228543 has 2 divisors, whose sum is σ = 11228544. Its totient is φ = 11228542.

The previous prime is 11228521. The next prime is 11228561. The reversal of 11228543 is 34582211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11228543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11228593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5614271 + 5614272.

It is an arithmetic number, because the mean of its divisors is an integer number (5614272).

Almost surely, 2^11228543 is an apocalyptic number.

11228543 is a deficient number, since it is larger than the sum of its proper divisors (1).

11228543 is an equidigital number, since it uses as much as digits as its factorization.

11228543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 26.

The square root of 11228543 is about 3350.9018189138. The cubic root of 11228543 is about 223.9276911058.

The spelling of 11228543 in words is "eleven million, two hundred twenty-eight thousand, five hundred forty-three".