144156689 has 2 divisors, whose sum is σ = 144156690. Its totient is φ = 144156688.

The previous prime is 144156679. The next prime is 144156721. The reversal of 144156689 is 986651441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141800464 + 2356225 = 11908^2 + 1535^2 .

It is an emirp because it is prime and its reverse (986651441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144156689 - 2⁴ = 144156673 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144156659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72078344 + 72078345.

It is an arithmetic number, because the mean of its divisors is an integer number (72078345).

Almost surely, 2^144156689 is an apocalyptic number.

It is an amenable number.

144156689 is a deficient number, since it is larger than the sum of its proper divisors (1).

144156689 is an equidigital number, since it uses as much as digits as its factorization.

144156689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 44.

The square root of 144156689 is about 12006.5269332976. The cubic root of 144156689 is about 524.3383216641.

The spelling of 144156689 in words is "one hundred forty-four million, one hundred fifty-six thousand, six hundred eighty-nine".