144262036781 has 2 divisors, whose sum is σ = 144262036782. Its totient is φ = 144262036780.

The previous prime is 144262036757. The next prime is 144262036813. The reversal of 144262036781 is 187630262441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101193335881 + 43068700900 = 318109^2 + 207530^2 .

It is a cyclic number.

It is not a de Polignac number, because 144262036781 - 2⁶ = 144262036717 is a prime.

It is a super-2 number, since 2×144262036781² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144262036181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72131018390 + 72131018391.

It is an arithmetic number, because the mean of its divisors is an integer number (72131018391).

Almost surely, 2^144262036781 is an apocalyptic number.

It is an amenable number.

144262036781 is a deficient number, since it is larger than the sum of its proper divisors (1).

144262036781 is an equidigital number, since it uses as much as digits as its factorization.

144262036781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 144262036781 in words is "one hundred forty-four billion, two hundred sixty-two million, thirty-six thousand, seven hundred eighty-one".