11384561 has 2 divisors, whose sum is σ = 11384562. Its totient is φ = 11384560.

The previous prime is 11384539. The next prime is 11384621. The reversal of 11384561 is 16548311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7507600 + 3876961 = 2740^2 + 1969^2 .

It is a cyclic number.

It is not a de Polignac number, because 11384561 - 2⁶ = 11384497 is a prime.

It is not a weakly prime, because it can be changed into another prime (11384521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5692280 + 5692281.

It is an arithmetic number, because the mean of its divisors is an integer number (5692281).

Almost surely, 2^11384561 is an apocalyptic number.

It is an amenable number.

11384561 is a deficient number, since it is larger than the sum of its proper divisors (1).

11384561 is an equidigital number, since it uses as much as digits as its factorization.

11384561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 29.

The square root of 11384561 is about 3374.1015100320. The cubic root of 11384561 is about 224.9600653405.

The spelling of 11384561 in words is "eleven million, three hundred eighty-four thousand, five hundred sixty-one".