1144656481 has 2 divisors, whose sum is σ = 1144656482. Its totient is φ = 1144656480.

The previous prime is 1144656467. The next prime is 1144656619. The reversal of 1144656481 is 1846564411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 843321600 + 301334881 = 29040^2 + 17359^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144656481 - 2¹⁵ = 1144623713 is a prime.

It is a super-2 number, since 2×1144656481² = 2620476918990606722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1144656421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572328240 + 572328241.

It is an arithmetic number, because the mean of its divisors is an integer number (572328241).

Almost surely, 2^1144656481 is an apocalyptic number.

It is an amenable number.

1144656481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144656481 is an equidigital number, since it uses as much as digits as its factorization.

1144656481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92160, while the sum is 40.

The square root of 1144656481 is about 33832.7722925568. The cubic root of 1144656481 is about 1046.0643234710.

The spelling of 1144656481 in words is "one billion, one hundred forty-four million, six hundred fifty-six thousand, four hundred eighty-one".