1224701393 has 4 divisors (see below), whose sum is σ = 1224804660. Its totient is φ = 1224598128.

The previous prime is 1224701333. The next prime is 1224701399. The reversal of 1224701393 is 3931074221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1113356689 + 111344704 = 33367^2 + 10552^2 .

It is a cyclic number.

It is not a de Polignac number, because 1224701393 - 2¹² = 1224697297 is a prime.

It is a super-2 number, since 2×1224701393² = 2999787004032280898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224701399) 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 3 ways as a sum of consecutive naturals, for example, 31130 + ... + 58467.

It is an arithmetic number, because the mean of its divisors is an integer number (306201165).

Almost surely, 2^1224701393 is an apocalyptic number.

It is an amenable number.

1224701393 is a deficient number, since it is larger than the sum of its proper divisors (103267).

1224701393 is an equidigital number, since it uses as much as digits as its factorization.

1224701393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103266.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 1224701393 is about 34995.7339257230. The cubic root of 1224701393 is about 1069.9005331593.

The spelling of 1224701393 in words is "one billion, two hundred twenty-four million, seven hundred one thousand, three hundred ninety-three".