144834561 has 12 divisors (see below), whose sum is σ = 216954192. Its totient is φ = 96556212.

The previous prime is 144834559. The next prime is 144834581. The reversal of 144834561 is 165438441.

144834561 is a `hidden beast` number, since 14 + 4 + 83 + 4 + 561 = 666.

It is not a de Polignac number, because 144834561 - 2¹ = 144834559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144834551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 297771 + ... + 298256.

It is an arithmetic number, because the mean of its divisors is an integer number (18079516).

It is a Proth number, since it is equal to 1105 ⋅ 2¹⁷ + 1 and 1105 < 2¹⁷.

Almost surely, 2^144834561 is an apocalyptic number.

It is an amenable number.

144834561 is a deficient number, since it is larger than the sum of its proper divisors (72119631).

144834561 is an frugal number, since it uses more digits than its factorization.

144834561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596042 (or 596030 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 144834561 is about 12034.7231376546. The cubic root of 144834561 is about 525.1589069992.

It can be divided in two parts, 14483 and 4561, that added together give a square (19044 = 138²).

The spelling of 144834561 in words is "one hundred forty-four million, eight hundred thirty-four thousand, five hundred sixty-one".