11306609 has 2 divisors, whose sum is σ = 11306610. Its totient is φ = 11306608.

The previous prime is 11306591. The next prime is 11306623. The reversal of 11306609 is 90660311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10705984 + 600625 = 3272^2 + 775^2 .

It is a cyclic number.

It is not a de Polignac number, because 11306609 - 2⁸ = 11306353 is a prime.

It is equal to p₇₄₅₄₀₆ and since 11306609 and 745406 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (11306209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5653304 + 5653305.

It is an arithmetic number, because the mean of its divisors is an integer number (5653305).

Almost surely, 2^11306609 is an apocalyptic number.

It is an amenable number.

11306609 is a deficient number, since it is larger than the sum of its proper divisors (1).

11306609 is an equidigital number, since it uses as much as digits as its factorization.

11306609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 11306609 is about 3362.5301485637. The cubic root of 11306609 is about 224.4454425357.

The spelling of 11306609 in words is "eleven million, three hundred six thousand, six hundred nine".