1136609 has 2 divisors, whose sum is σ = 1136610.
Its totient is φ = 1136608.
The previous prime is 1136593. The next prime is 1136617. The reversal of 1136609 is 9066311.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 883600 + 253009 = 940^2 + 503^2
It is a cyclic number.
It is not a de Polignac number, because 1136609 - 24 = 1136593 is a prime.
It is not a weakly prime, because it can be changed into another prime (1136659) 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, 568304 + 568305.
It is an arithmetic number, because the mean of its divisors is an integer number (568305).
21136609 is an apocalyptic number.
It is an amenable number.
1136609 is a deficient number, since it is larger than the sum of its proper divisors (1).
1136609 is an equidigital number, since it uses as much as digits as its factorization.
1136609 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 1136609 is about 1066.1186613131.
The cubic root of 1136609 is about 104.3607112284.
The spelling of 1136609 in words is "one million, one hundred thirty-six thousand, six hundred nine".