1244851201441 has 9 divisors (see below), whose sum is σ = 1247231127513. Its totient is φ = 1242475814400.

The previous prime is 1244851201411. The next prime is 1244851201481. The reversal of 1244851201441 is 1441021584421.

The square root of 1244851201441 is 1115729.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1204899187041 + 39952014400 = 1097679^2 + 199880^2 .

It is not a de Polignac number, because 1244851201441 - 2¹³ = 1244851193249 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 1244851201441.

It is not an unprimeable number, because it can be changed into a prime (1244851201411) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1036511641 + ... + 1036512841.

Almost surely, 2^{1244851201441} is an apocalyptic number.

1244851201441 is the 1115729-th square number.

1244851201441 is the 557865-th centered octagonal number.

It is an amenable number.

1244851201441 is a deficient number, since it is larger than the sum of its proper divisors (2379926072).

1244851201441 is an frugal number, since it uses more digits than its factorization.

1244851201441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4260 (or 2130 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 37.

Adding to 1244851201441 its reverse (1441021584421), we get a palindrome (2685872785862).

The spelling of 1244851201441 in words is "one trillion, two hundred forty-four billion, eight hundred fifty-one million, two hundred one thousand, four hundred forty-one".