144458477 has 2 divisors, whose sum is σ = 144458478. Its totient is φ = 144458476.

The previous prime is 144458473. The next prime is 144458497. The reversal of 144458477 is 774854441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144456361 + 2116 = 12019^2 + 46^2 .

It is a cyclic number.

It is not a de Polignac number, because 144458477 - 2² = 144458473 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144458473) 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, 72229238 + 72229239.

It is an arithmetic number, because the mean of its divisors is an integer number (72229239).

Almost surely, 2^144458477 is an apocalyptic number.

It is an amenable number.

144458477 is a deficient number, since it is larger than the sum of its proper divisors (1).

144458477 is an equidigital number, since it uses as much as digits as its factorization.

144458477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 501760, while the sum is 44.

The square root of 144458477 is about 12019.0880269678. The cubic root of 144458477 is about 524.7039625043.

It can be divided in two parts, 14445 and 8477, that added together give a palindrome (22922).

The spelling of 144458477 in words is "one hundred forty-four million, four hundred fifty-eight thousand, four hundred seventy-seven".