1224306645 has 8 divisors (see below), whose sum is σ = 1958890656. Its totient is φ = 652963536.

The previous prime is 1224306631. The next prime is 1224306647. The reversal of 1224306645 is 5466034221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1224306645 - 2⁵ = 1224306613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224306647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40810207 + ... + 40810236.

It is an arithmetic number, because the mean of its divisors is an integer number (244861332).

Almost surely, 2^1224306645 is an apocalyptic number.

1224306645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1224306645 is a deficient number, since it is larger than the sum of its proper divisors (734584011).

1224306645 is an equidigital number, since it uses as much as digits as its factorization.

1224306645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81620451.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 1224306645 is about 34990.0935265969. The cubic root of 1224306645 is about 1069.7855700391.

The spelling of 1224306645 in words is "one billion, two hundred twenty-four million, three hundred six thousand, six hundred forty-five".