144628973 has 2 divisors, whose sum is σ = 144628974. Its totient is φ = 144628972.

The previous prime is 144628943. The next prime is 144628999. The reversal of 144628973 is 379826441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144528484 + 100489 = 12022^2 + 317^2 .

It is a cyclic number.

It is not a de Polignac number, because 144628973 - 2¹⁰ = 144627949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144628943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72314486 + 72314487.

It is an arithmetic number, because the mean of its divisors is an integer number (72314487).

Almost surely, 2^144628973 is an apocalyptic number.

It is an amenable number.

144628973 is a deficient number, since it is larger than the sum of its proper divisors (1).

144628973 is an equidigital number, since it uses as much as digits as its factorization.

144628973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 44.

The square root of 144628973 is about 12026.1786532547. The cubic root of 144628973 is about 524.9103072776.

The spelling of 144628973 in words is "one hundred forty-four million, six hundred twenty-eight thousand, nine hundred seventy-three".