1222523 has 2 divisors, whose sum is σ = 1222524. Its totient is φ = 1222522.

The previous prime is 1222513. The next prime is 1222537. The reversal of 1222523 is 3252221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222523 - 2⁸ = 1222267 is a prime.

It is a nialpdrome in base 11.

It is not a weakly prime, because it can be changed into another prime (1222513) 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, 611261 + 611262.

It is an arithmetic number, because the mean of its divisors is an integer number (611262).

2^1222523 is an apocalyptic number.

1222523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222523 is an equidigital number, since it uses as much as digits as its factorization.

1222523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 17.

The square root of 1222523 is about 1105.6776202854. The cubic root of 1222523 is about 106.9265807809.

Adding to 1222523 its reverse (3252221), we get a palindrome (4474744).

The spelling of 1222523 in words is "one million, two hundred twenty-two thousand, five hundred twenty-three".