144004457 has 2 divisors, whose sum is σ = 144004458. Its totient is φ = 144004456.

The previous prime is 144004451. The next prime is 144004493. The reversal of 144004457 is 754400441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130965136 + 13039321 = 11444^2 + 3611^2 .

It is a cyclic number.

It is not a de Polignac number, because 144004457 - 2²⁰ = 142955881 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144004451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72002228 + 72002229.

It is an arithmetic number, because the mean of its divisors is an integer number (72002229).

Almost surely, 2^144004457 is an apocalyptic number.

It is an amenable number.

144004457 is a deficient number, since it is larger than the sum of its proper divisors (1).

144004457 is an equidigital number, since it uses as much as digits as its factorization.

144004457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 144004457 is about 12000.1857068964. The cubic root of 144004457 is about 524.1536864917.

Adding to 144004457 its reverse (754400441), we get a palindrome (898404898).

The spelling of 144004457 in words is "one hundred forty-four million, four thousand, four hundred fifty-seven".