144726505909 has 8 divisors (see below), whose sum is σ = 153243168408. Its totient is φ = 136210214400.

The previous prime is 144726505883. The next prime is 144726505933. The reversal of 144726505909 is 909505627441.

It can be written as a sum of positive squares in 4 ways, for example, as 80441438884 + 64285067025 = 283622^2 + 253545^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144726505909 - 2⁵ = 144726505877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144726505999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1366779 + ... + 1468855.

It is an arithmetic number, because the mean of its divisors is an integer number (19155396051).

Almost surely, 2^144726505909 is an apocalyptic number.

It is an amenable number.

144726505909 is a deficient number, since it is larger than the sum of its proper divisors (8516662499).

144726505909 is a wasteful number, since it uses less digits than its factorization.

144726505909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185495.

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 144726505909 in words is "one hundred forty-four billion, seven hundred twenty-six million, five hundred five thousand, nine hundred nine".