144245009 has 2 divisors, whose sum is σ = 144245010. Its totient is φ = 144245008.

The previous prime is 144244999. The next prime is 144245027. The reversal of 144245009 is 900542441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143041600 + 1203409 = 11960^2 + 1097^2 .

It is a cyclic number.

It is not a de Polignac number, because 144245009 - 2⁴ = 144244993 is a prime.

It is not a weakly prime, because it can be changed into another prime (144245089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72122504 + 72122505.

It is an arithmetic number, because the mean of its divisors is an integer number (72122505).

Almost surely, 2^144245009 is an apocalyptic number.

It is an amenable number.

144245009 is a deficient number, since it is larger than the sum of its proper divisors (1).

144245009 is an equidigital number, since it uses as much as digits as its factorization.

144245009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 144245009 is about 12010.2043696184. The cubic root of 144245009 is about 524.4453813426.

The spelling of 144245009 in words is "one hundred forty-four million, two hundred forty-five thousand, nine".