144135473 has 2 divisors, whose sum is σ = 144135474. Its totient is φ = 144135472.

The previous prime is 144135437. The next prime is 144135487. The reversal of 144135473 is 374531441.

Together with previous prime (144135437) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137545984 + 6589489 = 11728^2 + 2567^2 .

It is a cyclic number.

It is not a de Polignac number, because 144135473 - 2²⁰ = 143086897 is a prime.

It is not a weakly prime, because it can be changed into another prime (144135413) 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, 72067736 + 72067737.

It is an arithmetic number, because the mean of its divisors is an integer number (72067737).

Almost surely, 2^144135473 is an apocalyptic number.

It is an amenable number.

144135473 is a deficient number, since it is larger than the sum of its proper divisors (1).

144135473 is an equidigital number, since it uses as much as digits as its factorization.

144135473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 32.

The square root of 144135473 is about 12005.6433813436. The cubic root of 144135473 is about 524.3125975540.

The spelling of 144135473 in words is "one hundred forty-four million, one hundred thirty-five thousand, four hundred seventy-three".