144988289 has 2 divisors, whose sum is σ = 144988290. Its totient is φ = 144988288.

The previous prime is 144988267. The next prime is 144988307. The reversal of 144988289 is 982889441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101203600 + 43784689 = 10060^2 + 6617^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144988289 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 144988289.

It is not a weakly prime, because it can be changed into another prime (144988219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72494144 + 72494145.

It is an arithmetic number, because the mean of its divisors is an integer number (72494145).

Almost surely, 2^144988289 is an apocalyptic number.

It is an amenable number.

144988289 is a deficient number, since it is larger than the sum of its proper divisors (1).

144988289 is an equidigital number, since it uses as much as digits as its factorization.

144988289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1327104, while the sum is 53.

The square root of 144988289 is about 12041.1082961661. The cubic root of 144988289 is about 525.3446432438.

The spelling of 144988289 in words is "one hundred forty-four million, nine hundred eighty-eight thousand, two hundred eighty-nine".