1226503 has 2 divisors, whose sum is σ = 1226504. Its totient is φ = 1226502.

The previous prime is 1226501. The next prime is 1226531. The reversal of 1226503 is 3056221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1226503 - 2¹ = 1226501 is a prime.

Together with 1226501, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1226501) 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, 613251 + 613252.

It is an arithmetic number, because the mean of its divisors is an integer number (613252).

2^1226503 is an apocalyptic number.

1226503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226503 is an equidigital number, since it uses as much as digits as its factorization.

1226503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1226503 is about 1107.4759591070. The cubic root of 1226503 is about 107.0424904759.

The spelling of 1226503 in words is "one million, two hundred twenty-six thousand, five hundred three".