144546646549 has 2 divisors, whose sum is σ = 144546646550. Its totient is φ = 144546646548.

The previous prime is 144546646513. The next prime is 144546646553. The reversal of 144546646549 is 945646645441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122740217649 + 21806428900 = 350343^2 + 147670^2 .

It is a cyclic number.

It is not a de Polignac number, because 144546646549 - 2⁷ = 144546646421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144546646493 and 144546646502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144546641549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72273323274 + 72273323275.

It is an arithmetic number, because the mean of its divisors is an integer number (72273323275).

Almost surely, 2^144546646549 is an apocalyptic number.

It is an amenable number.

144546646549 is a deficient number, since it is larger than the sum of its proper divisors (1).

144546646549 is an equidigital number, since it uses as much as digits as its factorization.

144546646549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 49766400, while the sum is 58.

The spelling of 144546646549 in words is "one hundred forty-four billion, five hundred forty-six million, six hundred forty-six thousand, five hundred forty-nine".