144487289 has 2 divisors, whose sum is σ = 144487290. Its totient is φ = 144487288.

The previous prime is 144487271. The next prime is 144487297. The reversal of 144487289 is 982784441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144480400 + 6889 = 12020^2 + 83^2 .

It is a cyclic number.

It is not a de Polignac number, because 144487289 - 2¹² = 144483193 is a prime.

It is not a weakly prime, because it can be changed into another prime (144480289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72243644 + 72243645.

It is an arithmetic number, because the mean of its divisors is an integer number (72243645).

Almost surely, 2^144487289 is an apocalyptic number.

It is an amenable number.

144487289 is a deficient number, since it is larger than the sum of its proper divisors (1).

144487289 is an equidigital number, since it uses as much as digits as its factorization.

144487289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 516096, while the sum is 47.

The square root of 144487289 is about 12020.2865606441. The cubic root of 144487289 is about 524.7388439594.

The spelling of 144487289 in words is "one hundred forty-four million, four hundred eighty-seven thousand, two hundred eighty-nine".