144206539 has 2 divisors, whose sum is σ = 144206540. Its totient is φ = 144206538.

The previous prime is 144206537. The next prime is 144206549. The reversal of 144206539 is 935602441.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144206539 - 2¹ = 144206537 is a prime.

Together with 144206537, it forms a pair of twin primes.

It is equal to p_8136448 and since 144206539 and 8136448 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (144206537) 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, 72103269 + 72103270.

It is an arithmetic number, because the mean of its divisors is an integer number (72103270).

Almost surely, 2^144206539 is an apocalyptic number.

144206539 is a deficient number, since it is larger than the sum of its proper divisors (1).

144206539 is an equidigital number, since it uses as much as digits as its factorization.

144206539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 144206539 is about 12008.6027080589. The cubic root of 144206539 is about 524.3987541772.

The spelling of 144206539 in words is "one hundred forty-four million, two hundred six thousand, five hundred thirty-nine".