1226611 has 2 divisors, whose sum is σ = 1226612. Its totient is φ = 1226610.

The previous prime is 1226609. The next prime is 1226623. The reversal of 1226611 is 1166221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1226611 - 2¹ = 1226609 is a prime.

Together with 1226609, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1226651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613305 + 613306.

It is an arithmetic number, because the mean of its divisors is an integer number (613306).

2^1226611 is an apocalyptic number.

1226611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226611 is an equidigital number, since it uses as much as digits as its factorization.

1226611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 19.

The square root of 1226611 is about 1107.5247175571. The cubic root of 1226611 is about 107.0456322673.

The spelling of 1226611 in words is "one million, two hundred twenty-six thousand, six hundred eleven".