144487573 has 6 divisors (see below), whose sum is σ = 153487106. Its totient is φ = 135988032.

The previous prime is 144487561. The next prime is 144487579. The reversal of 144487573 is 375784441.

It can be written as a sum of positive squares in 3 ways, for example, as 105637284 + 38850289 = 10278^2 + 6233^2 .

It is not a de Polignac number, because 144487573 - 2¹⁷ = 144356501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144487579) 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 in 5 ways as a sum of consecutive naturals, for example, 249690 + ... + 250267.

Almost surely, 2^144487573 is an apocalyptic number.

It is an amenable number.

144487573 is a deficient number, since it is larger than the sum of its proper divisors (8999533).

144487573 is an equidigital number, since it uses as much as digits as its factorization.

144487573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499991 (or 499974 counting only the distinct ones).

The product of its digits is 376320, while the sum is 43.

The square root of 144487573 is about 12020.2983740005. The cubic root of 144487573 is about 524.7391877629.

The spelling of 144487573 in words is "one hundred forty-four million, four hundred eighty-seven thousand, five hundred seventy-three".