144404149 has 2 divisors, whose sum is σ = 144404150. Its totient is φ = 144404148.

The previous prime is 144404129. The next prime is 144404167. The reversal of 144404149 is 941404441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142635249 + 1768900 = 11943^2 + 1330^2 .

It is an emirp because it is prime and its reverse (941404441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144404149 - 2¹³ = 144395957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144404149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144404119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72202074 + 72202075.

It is an arithmetic number, because the mean of its divisors is an integer number (72202075).

Almost surely, 2^144404149 is an apocalyptic number.

It is an amenable number.

144404149 is a deficient number, since it is larger than the sum of its proper divisors (1).

144404149 is an equidigital number, since it uses as much as digits as its factorization.

144404149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 144404149 is about 12016.8277427947. The cubic root of 144404149 is about 524.6381773003.

The spelling of 144404149 in words is "one hundred forty-four million, four hundred four thousand, one hundred forty-nine".