144003217 has 2 divisors, whose sum is σ = 144003218. Its totient is φ = 144003216.

The previous prime is 144003187. The next prime is 144003229. The reversal of 144003217 is 712300441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142468096 + 1535121 = 11936^2 + 1239^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144003217 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144003287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72001608 + 72001609.

It is an arithmetic number, because the mean of its divisors is an integer number (72001609).

Almost surely, 2^144003217 is an apocalyptic number.

It is an amenable number.

144003217 is a deficient number, since it is larger than the sum of its proper divisors (1).

144003217 is an equidigital number, since it uses as much as digits as its factorization.

144003217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 144003217 is about 12000.1340409180. The cubic root of 144003217 is about 524.1521820188.

Adding to 144003217 its reverse (712300441), we get a palindrome (856303658).

The spelling of 144003217 in words is "one hundred forty-four million, three thousand, two hundred seventeen".