1224659 has 4 divisors (see below), whose sum is σ = 1226904. Its totient is φ = 1222416.

The previous prime is 1224637. The next prime is 1224673. The reversal of 1224659 is 9564221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1224659 - 2⁸ = 1224403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224059) 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 in 3 ways as a sum of consecutive naturals, for example, 284 + ... + 1590.

It is an arithmetic number, because the mean of its divisors is an integer number (306726).

2^1224659 is an apocalyptic number.

1224659 is a deficient number, since it is larger than the sum of its proper divisors (2245).

1224659 is an equidigital number, since it uses as much as digits as its factorization.

1224659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244.

The product of its digits is 4320, while the sum is 29.

The square root of 1224659 is about 1106.6431222395. The cubic root of 1224659 is about 106.9888188159.

The spelling of 1224659 in words is "one million, two hundred twenty-four thousand, six hundred fifty-nine".