11442209 has 2 divisors, whose sum is σ = 11442210. Its totient is φ = 11442208.

The previous prime is 11442203. The next prime is 11442227. The reversal of 11442209 is 90224411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10061584 + 1380625 = 3172^2 + 1175^2 .

It is a cyclic number.

It is not a de Polignac number, because 11442209 - 2¹² = 11438113 is a prime.

It is not a weakly prime, because it can be changed into another prime (11442203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5721104 + 5721105.

It is an arithmetic number, because the mean of its divisors is an integer number (5721105).

Almost surely, 2^11442209 is an apocalyptic number.

It is an amenable number.

11442209 is a deficient number, since it is larger than the sum of its proper divisors (1).

11442209 is an equidigital number, since it uses as much as digits as its factorization.

11442209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 11442209 is about 3382.6334415659. The cubic root of 11442209 is about 225.3391363090.

The spelling of 11442209 in words is "eleven million, four hundred forty-two thousand, two hundred nine".