144801889 has 2 divisors, whose sum is σ = 144801890. Its totient is φ = 144801888.

The previous prime is 144801887. The next prime is 144801919. The reversal of 144801889 is 988108441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144480400 + 321489 = 12020^2 + 567^2 .

It is a cyclic number.

It is not a de Polignac number, because 144801889 - 2¹ = 144801887 is a prime.

Together with 144801887, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (144801887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72400944 + 72400945.

It is an arithmetic number, because the mean of its divisors is an integer number (72400945).

Almost surely, 2^144801889 is an apocalyptic number.

It is an amenable number.

144801889 is a deficient number, since it is larger than the sum of its proper divisors (1).

144801889 is an equidigital number, since it uses as much as digits as its factorization.

144801889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 43.

The square root of 144801889 is about 12033.3656555429. The cubic root of 144801889 is about 525.1194153152.

The spelling of 144801889 in words is "one hundred forty-four million, eight hundred one thousand, eight hundred eighty-nine".