144366385 has 4 divisors (see below), whose sum is σ = 173239668. Its totient is φ = 115493104.

The previous prime is 144366347. The next prime is 144366403. The reversal of 144366385 is 583663441.

144366385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583663441 = 12343 ⋅47287.

It can be written as a sum of positive squares in 2 ways, for example, as 89946256 + 54420129 = 9484^2 + 7377^2 .

It is a cyclic number.

It is not a de Polignac number, because 144366385 - 2⁹ = 144365873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14436634 + ... + 14436643.

It is an arithmetic number, because the mean of its divisors is an integer number (43309917).

Almost surely, 2^144366385 is an apocalyptic number.

It is an amenable number.

144366385 is a deficient number, since it is larger than the sum of its proper divisors (28873283).

144366385 is an equidigital number, since it uses as much as digits as its factorization.

144366385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28873282.

The product of its digits is 207360, while the sum is 40.

The square root of 144366385 is about 12015.2563434993. The cubic root of 144366385 is about 524.5924395483.

The spelling of 144366385 in words is "one hundred forty-four million, three hundred sixty-six thousand, three hundred eighty-five".