144377609 has 2 divisors, whose sum is σ = 144377610. Its totient is φ = 144377608.

The previous prime is 144377591. The next prime is 144377621. The reversal of 144377609 is 906773441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77088400 + 67289209 = 8780^2 + 8203^2 .

It is a cyclic number.

It is not a de Polignac number, because 144377609 - 2²⁰ = 143329033 is a prime.

It is not a weakly prime, because it can be changed into another prime (144377659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72188804 + 72188805.

It is an arithmetic number, because the mean of its divisors is an integer number (72188805).

Almost surely, 2^144377609 is an apocalyptic number.

It is an amenable number.

144377609 is a deficient number, since it is larger than the sum of its proper divisors (1).

144377609 is an equidigital number, since it uses as much as digits as its factorization.

144377609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 144377609 is about 12015.7234072693. The cubic root of 144377609 is about 524.6060342942.

The spelling of 144377609 in words is "one hundred forty-four million, three hundred seventy-seven thousand, six hundred nine".