144639683 has 2 divisors, whose sum is σ = 144639684. Its totient is φ = 144639682.

The previous prime is 144639679. The next prime is 144639749. The reversal of 144639683 is 386936441.

It is a weak prime.

It is an emirp because it is prime and its reverse (386936441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144639683 - 2² = 144639679 is a prime.

It is not a weakly prime, because it can be changed into another prime (144639613) 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, 72319841 + 72319842.

It is an arithmetic number, because the mean of its divisors is an integer number (72319842).

Almost surely, 2^144639683 is an apocalyptic number.

144639683 is a deficient number, since it is larger than the sum of its proper divisors (1).

144639683 is an equidigital number, since it uses as much as digits as its factorization.

144639683 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 44.

The square root of 144639683 is about 12026.6239236121. The cubic root of 144639683 is about 524.9232637656.

The spelling of 144639683 in words is "one hundred forty-four million, six hundred thirty-nine thousand, six hundred eighty-three".