144340420249 has 2 divisors, whose sum is σ = 144340420250. Its totient is φ = 144340420248.

The previous prime is 144340420247. The next prime is 144340420283. The reversal of 144340420249 is 942024043441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103195137600 + 41145282649 = 321240^2 + 202843^2 .

It is a cyclic number.

It is not a de Polignac number, because 144340420249 - 2¹ = 144340420247 is a prime.

Together with 144340420247, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (144340420247) 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, 72170210124 + 72170210125.

It is an arithmetic number, because the mean of its divisors is an integer number (72170210125).

Almost surely, 2^144340420249 is an apocalyptic number.

It is an amenable number.

144340420249 is a deficient number, since it is larger than the sum of its proper divisors (1).

144340420249 is an equidigital number, since it uses as much as digits as its factorization.

144340420249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 37.

The spelling of 144340420249 in words is "one hundred forty-four billion, three hundred forty million, four hundred twenty thousand, two hundred forty-nine".