144895889 has 2 divisors, whose sum is σ = 144895890. Its totient is φ = 144895888.

The previous prime is 144895873. The next prime is 144895909. The reversal of 144895889 is 988598441.

144895889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84180625 + 60715264 = 9175^2 + 7792^2 .

It is a cyclic number.

It is not a de Polignac number, because 144895889 - 2⁴ = 144895873 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (144895859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72447944 + 72447945.

It is an arithmetic number, because the mean of its divisors is an integer number (72447945).

Almost surely, 2^144895889 is an apocalyptic number.

It is an amenable number.

144895889 is a deficient number, since it is larger than the sum of its proper divisors (1).

144895889 is an equidigital number, since it uses as much as digits as its factorization.

144895889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3317760, while the sum is 56.

The square root of 144895889 is about 12037.2708285558. The cubic root of 144895889 is about 525.2330200664.

The spelling of 144895889 in words is "one hundred forty-four million, eight hundred ninety-five thousand, eight hundred eighty-nine".