1224565313 has 4 divisors (see below), whose sum is σ = 1231406640. Its totient is φ = 1217723988.

The previous prime is 1224565259. The next prime is 1224565361. The reversal of 1224565313 is 3135654221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1224565313 - 2¹⁸ = 1224303169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1224565313.

It is not an unprimeable number, because it can be changed into a prime (1224565393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3420395 + ... + 3420752.

It is an arithmetic number, because the mean of its divisors is an integer number (307851660).

Almost surely, 2^1224565313 is an apocalyptic number.

It is an amenable number.

1224565313 is a deficient number, since it is larger than the sum of its proper divisors (6841327).

1224565313 is an equidigital number, since it uses as much as digits as its factorization.

1224565313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6841326.

The product of its digits is 21600, while the sum is 32.

The square root of 1224565313 is about 34993.7896347338. The cubic root of 1224565313 is about 1069.8609051439.

The spelling of 1224565313 in words is "one billion, two hundred twenty-four million, five hundred sixty-five thousand, three hundred thirteen".