11205541 has 2 divisors, whose sum is σ = 11205542. Its totient is φ = 11205540.

The previous prime is 11205521. The next prime is 11205547. The reversal of 11205541 is 14550211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10432900 + 772641 = 3230^2 + 879^2 .

It is a cyclic number.

It is not a de Polignac number, because 11205541 - 2¹³ = 11197349 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11205547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5602770 + 5602771.

It is an arithmetic number, because the mean of its divisors is an integer number (5602771).

Almost surely, 2^11205541 is an apocalyptic number.

It is an amenable number.

11205541 is a deficient number, since it is larger than the sum of its proper divisors (1).

11205541 is an equidigital number, since it uses as much as digits as its factorization.

11205541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 11205541 is about 3347.4678489868. The cubic root of 11205541 is about 223.7746790918.

Adding to 11205541 its reverse (14550211), we get a palindrome (25755752).

The spelling of 11205541 in words is "eleven million, two hundred five thousand, five hundred forty-one".