144653549 has 2 divisors, whose sum is σ = 144653550. Its totient is φ = 144653548.

The previous prime is 144653539. The next prime is 144653581. The reversal of 144653549 is 945356441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144240100 + 413449 = 12010^2 + 643^2 .

It is an emirp because it is prime and its reverse (945356441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144653549 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144653539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72326774 + 72326775.

It is an arithmetic number, because the mean of its divisors is an integer number (72326775).

Almost surely, 2^144653549 is an apocalyptic number.

It is an amenable number.

144653549 is a deficient number, since it is larger than the sum of its proper divisors (1).

144653549 is an equidigital number, since it uses as much as digits as its factorization.

144653549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 41.

The square root of 144653549 is about 12027.2003808035. The cubic root of 144653549 is about 524.9400372937.

The spelling of 144653549 in words is "one hundred forty-four million, six hundred fifty-three thousand, five hundred forty-nine".