13144400281 has 2 divisors, whose sum is σ = 13144400282. Its totient is φ = 13144400280.

The previous prime is 13144400263. The next prime is 13144400333. The reversal of 13144400281 is 18200444131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11928134656 + 1216265625 = 109216^2 + 34875^2 .

It is a cyclic number.

It is not a de Polignac number, because 13144400281 - 2⁹ = 13144399769 is a prime.

It is a super-2 number, since 2×13144400281² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13144407281) 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 as a sum of consecutive naturals, namely, 6572200140 + 6572200141.

It is an arithmetic number, because the mean of its divisors is an integer number (6572200141).

Almost surely, 2^13144400281 is an apocalyptic number.

It is an amenable number.

13144400281 is a deficient number, since it is larger than the sum of its proper divisors (1).

13144400281 is an equidigital number, since it uses as much as digits as its factorization.

13144400281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 28.

The spelling of 13144400281 in words is "thirteen billion, one hundred forty-four million, four hundred thousand, two hundred eighty-one".