1244960641 has 2 divisors, whose sum is σ = 1244960642. Its totient is φ = 1244960640.

The previous prime is 1244960623. The next prime is 1244960659. The reversal of 1244960641 is 1460694421.

It is a balanced prime because it is at equal distance from previous prime (1244960623) and next prime (1244960659).

It can be written as a sum of positive squares in only one way, i.e., 872316225 + 372644416 = 29535^2 + 19304^2 .

It is a cyclic number.

It is not a de Polignac number, because 1244960641 - 2¹⁷ = 1244829569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1244960641.

It is not a weakly prime, because it can be changed into another prime (1244960611) 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 as a sum of consecutive naturals, namely, 622480320 + 622480321.

It is an arithmetic number, because the mean of its divisors is an integer number (622480321).

Almost surely, 2^1244960641 is an apocalyptic number.

It is an amenable number.

1244960641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244960641 is an equidigital number, since it uses as much as digits as its factorization.

1244960641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 1244960641 is about 35283.9997874391. Note that the first 3 decimals coincide. The cubic root of 1244960641 is about 1075.7677993463.

The spelling of 1244960641 in words is "one billion, two hundred forty-four million, nine hundred sixty thousand, six hundred forty-one".