144205221889 has 2 divisors, whose sum is σ = 144205221890. Its totient is φ = 144205221888.

The previous prime is 144205221863. The next prime is 144205221961. The reversal of 144205221889 is 988122502441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123211530225 + 20993691664 = 351015^2 + 144892^2 .

It is a cyclic number.

It is not a de Polignac number, because 144205221889 - 2³⁵ = 109845483521 is a prime.

It is not a weakly prime, because it can be changed into another prime (144205221289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72102610944 + 72102610945.

It is an arithmetic number, because the mean of its divisors is an integer number (72102610945).

Almost surely, 2^144205221889 is an apocalyptic number.

It is an amenable number.

144205221889 is a deficient number, since it is larger than the sum of its proper divisors (1).

144205221889 is an equidigital number, since it uses as much as digits as its factorization.

144205221889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 368640, while the sum is 46.

The spelling of 144205221889 in words is "one hundred forty-four billion, two hundred five million, two hundred twenty-one thousand, eight hundred eighty-nine".