144539953 has 2 divisors, whose sum is σ = 144539954. Its totient is φ = 144539952.

The previous prime is 144539951. The next prime is 144539963. The reversal of 144539953 is 359935441.

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., 105001009 + 39538944 = 10247^2 + 6288^2 .

It is a cyclic number.

It is not a de Polignac number, because 144539953 - 2¹ = 144539951 is a prime.

It is a super-4 number, since 4×144539953⁴ (a number of 34 digits) contains 4444 as substring.

Together with 144539951, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (144539951) 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, 72269976 + 72269977.

It is an arithmetic number, because the mean of its divisors is an integer number (72269977).

Almost surely, 2^144539953 is an apocalyptic number.

It is an amenable number.

144539953 is a deficient number, since it is larger than the sum of its proper divisors (1).

144539953 is an equidigital number, since it uses as much as digits as its factorization.

144539953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 291600, while the sum is 43.

The square root of 144539953 is about 12022.4769910364. The cubic root of 144539953 is about 524.8025900273.

The spelling of 144539953 in words is "one hundred forty-four million, five hundred thirty-nine thousand, nine hundred fifty-three".