144605317 has 2 divisors, whose sum is σ = 144605318. Its totient is φ = 144605316.

The previous prime is 144605299. The next prime is 144605327. The reversal of 144605317 is 713506441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130096836 + 14508481 = 11406^2 + 3809^2 .

It is a cyclic number.

It is not a de Polignac number, because 144605317 - 2²³ = 136216709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144605327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72302658 + 72302659.

It is an arithmetic number, because the mean of its divisors is an integer number (72302659).

Almost surely, 2^144605317 is an apocalyptic number.

It is an amenable number.

144605317 is a deficient number, since it is larger than the sum of its proper divisors (1).

144605317 is an equidigital number, since it uses as much as digits as its factorization.

144605317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 144605317 is about 12025.1950919725. The cubic root of 144605317 is about 524.8816870202.

The spelling of 144605317 in words is "one hundred forty-four million, six hundred five thousand, three hundred seventeen".