144566393 has 2 divisors, whose sum is σ = 144566394. Its totient is φ = 144566392.

The previous prime is 144566381. The next prime is 144566441. The reversal of 144566393 is 393665441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90573289 + 53993104 = 9517^2 + 7348^2 .

It is a cyclic number.

It is not a de Polignac number, because 144566393 - 2¹⁶ = 144500857 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144566393.

It is not a weakly prime, because it can be changed into another prime (144566593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72283196 + 72283197.

It is an arithmetic number, because the mean of its divisors is an integer number (72283197).

Almost surely, 2^144566393 is an apocalyptic number.

It is an amenable number.

144566393 is a deficient number, since it is larger than the sum of its proper divisors (1).

144566393 is an equidigital number, since it uses as much as digits as its factorization.

144566393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 41.

The square root of 144566393 is about 12023.5765477665. The cubic root of 144566393 is about 524.8345879495.

The spelling of 144566393 in words is "one hundred forty-four million, five hundred sixty-six thousand, three hundred ninety-three".