1244716673 has 4 divisors (see below), whose sum is σ = 1246734660. Its totient is φ = 1242698688.

The previous prime is 1244716621. The next prime is 1244716703. The reversal of 1244716673 is 3766174421.

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

It can be written as a sum of positive squares in 2 ways, for example, as 101465329 + 1143251344 = 10073^2 + 33812^2 .

It is a cyclic number.

It is not a de Polignac number, because 1244716673 - 2¹² = 1244712577 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 1244716673.

It is not an unprimeable number, because it can be changed into a prime (1244716073) 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, 1008068 + ... + 1009301.

It is an arithmetic number, because the mean of its divisors is an integer number (311683665).

Almost surely, 2^1244716673 is an apocalyptic number.

It is an amenable number.

1244716673 is a deficient number, since it is larger than the sum of its proper divisors (2017987).

1244716673 is an equidigital number, since it uses as much as digits as its factorization.

1244716673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2017986.

The product of its digits is 169344, while the sum is 41.

The square root of 1244716673 is about 35280.5424136308. The cubic root of 1244716673 is about 1075.6975240151.

The spelling of 1244716673 in words is "one billion, two hundred forty-four million, seven hundred sixteen thousand, six hundred seventy-three".