144661679 has 2 divisors, whose sum is σ = 144661680. Its totient is φ = 144661678.

The previous prime is 144661669. The next prime is 144661711. The reversal of 144661679 is 976166441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144661679 - 2²⁰ = 143613103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144661669) 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, 72330839 + 72330840.

It is an arithmetic number, because the mean of its divisors is an integer number (72330840).

Almost surely, 2^144661679 is an apocalyptic number.

144661679 is a deficient number, since it is larger than the sum of its proper divisors (1).

144661679 is an equidigital number, since it uses as much as digits as its factorization.

144661679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 44.

The square root of 144661679 is about 12027.5383599471. The cubic root of 144661679 is about 524.9498715554.

The spelling of 144661679 in words is "one hundred forty-four million, six hundred sixty-one thousand, six hundred seventy-nine".