144789553 has 2 divisors, whose sum is σ = 144789554. Its totient is φ = 144789552.

The previous prime is 144789551. The next prime is 144789559. The reversal of 144789553 is 355987441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132066064 + 12723489 = 11492^2 + 3567^2 .

It is a cyclic number.

It is not a de Polignac number, because 144789553 - 2¹ = 144789551 is a prime.

Together with 144789551, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (144789551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72394776 + 72394777.

It is an arithmetic number, because the mean of its divisors is an integer number (72394777).

Almost surely, 2^144789553 is an apocalyptic number.

It is an amenable number.

144789553 is a deficient number, since it is larger than the sum of its proper divisors (1).

144789553 is an equidigital number, since it uses as much as digits as its factorization.

144789553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 46.

The square root of 144789553 is about 12032.8530698251. The cubic root of 144789553 is about 525.1045028554.

The spelling of 144789553 in words is "one hundred forty-four million, seven hundred eighty-nine thousand, five hundred fifty-three".