144788461 has 2 divisors, whose sum is σ = 144788462. Its totient is φ = 144788460.

The previous prime is 144788459. The next prime is 144788489. The reversal of 144788461 is 164887441.

It is a happy number.

144788461 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., 125865961 + 18922500 = 11219^2 + 4350^2 .

It is a cyclic number.

It is not a de Polignac number, because 144788461 - 2¹ = 144788459 is a prime.

Together with 144788459, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144788401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72394230 + 72394231.

It is an arithmetic number, because the mean of its divisors is an integer number (72394231).

Almost surely, 2^144788461 is an apocalyptic number.

It is an amenable number.

144788461 is a deficient number, since it is larger than the sum of its proper divisors (1).

144788461 is an equidigital number, since it uses as much as digits as its factorization.

144788461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172032, while the sum is 43.

The square root of 144788461 is about 12032.8076939674. The cubic root of 144788461 is about 525.1031827427.

The spelling of 144788461 in words is "one hundred forty-four million, seven hundred eighty-eight thousand, four hundred sixty-one".