144206549 has 2 divisors, whose sum is σ = 144206550. Its totient is φ = 144206548.

The previous prime is 144206539. The next prime is 144206581. The reversal of 144206549 is 945602441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134328100 + 9878449 = 11590^2 + 3143^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144206549 is a prime.

It is a Chen prime.

It is equal to p_8136449 and since 144206549 and 8136449 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144206519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72103274 + 72103275.

It is an arithmetic number, because the mean of its divisors is an integer number (72103275).

Almost surely, 2^144206549 is an apocalyptic number.

It is an amenable number.

144206549 is a deficient number, since it is larger than the sum of its proper divisors (1).

144206549 is an equidigital number, since it uses as much as digits as its factorization.

144206549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 144206549 is about 12008.6031244271. The cubic root of 144206549 is about 524.3987662987.

The spelling of 144206549 in words is "one hundred forty-four million, two hundred six thousand, five hundred forty-nine".