1224650513 has 4 divisors (see below), whose sum is σ = 1228588608. Its totient is φ = 1220712420.

The previous prime is 1224650507. The next prime is 1224650587. The reversal of 1224650513 is 3150564221.

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 a de Polignac number, because none of the positive numbers 2^k-1224650513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224650503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1968581 + ... + 1969202.

It is an arithmetic number, because the mean of its divisors is an integer number (307147152).

Almost surely, 2^1224650513 is an apocalyptic number.

It is an amenable number.

1224650513 is a deficient number, since it is larger than the sum of its proper divisors (3938095).

1224650513 is an equidigital number, since it uses as much as digits as its factorization.

1224650513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3938094.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1224650513 is about 34995.0069724239. The cubic root of 1224650513 is about 1069.8857166788.

The spelling of 1224650513 in words is "one billion, two hundred twenty-four million, six hundred fifty thousand, five hundred thirteen".