144889093449 has 27 divisors (see below), whose sum is σ = 210747538677. Its totient is φ = 95922036000.

The previous prime is 144889093411. The next prime is 144889093463. The reversal of 144889093449 is 944390988441.

The square root of 144889093449 is 380643.

It is a perfect power (a square), and thus also a powerful number.

144889093449 is a `hidden beast` number, since 14 + 4 + 8 + 8 + 90 + 93 + 449 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10669443849 + 134219649600 = 103293^2 + 366360^2 .

It is not a de Polignac number, because 144889093449 - 2¹¹ = 144889091401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144889093409) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 206688799 + ... + 206689499.

Almost surely, 2^144889093449 is an apocalyptic number.

144889093449 is the 380643-rd square number.

144889093449 is the 190322-nd centered octagonal number.

It is an amenable number.

144889093449 is a deficient number, since it is larger than the sum of its proper divisors (65858445228).

144889093449 is an frugal number, since it uses more digits than its factorization.

144889093449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770 (or 885 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 63.

The spelling of 144889093449 in words is "one hundred forty-four billion, eight hundred eighty-nine million, ninety-three thousand, four hundred forty-nine".