1224559 has 12 divisors (see below), whose sum is σ = 1449624. Its totient is φ = 1031184.

The previous prime is 1224533. The next prime is 1224577. The reversal of 1224559 is 9554221.

It is not a de Polignac number, because 1224559 - 2¹⁷ = 1093487 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3097 + ... + 3469.

It is an arithmetic number, because the mean of its divisors is an integer number (120802).

2^1224559 is an apocalyptic number.

1224559 is a deficient number, since it is larger than the sum of its proper divisors (225065).

1224559 is an equidigital number, since it uses as much as digits as its factorization.

1224559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 447 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 1224559 is about 1106.5979396330. The cubic root of 1224559 is about 106.9859066657.

The spelling of 1224559 in words is "one million, two hundred twenty-four thousand, five hundred fifty-nine".