144135521305 has 16 divisors (see below), whose sum is σ = 175012358400. Its totient is φ = 113949297280.

The previous prime is 144135521303. The next prime is 144135521359. The reversal of 144135521305 is 503125531441.

It is not a de Polignac number, because 144135521305 - 2¹ = 144135521303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144135521303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303820 + ... + 616909.

It is an arithmetic number, because the mean of its divisors is an integer number (10938272400).

Almost surely, 2^144135521305 is an apocalyptic number.

It is an amenable number.

144135521305 is a deficient number, since it is larger than the sum of its proper divisors (30876837095).

144135521305 is a wasteful number, since it uses less digits than its factorization.

144135521305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921104.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 144135521305 in words is "one hundred forty-four billion, one hundred thirty-five million, five hundred twenty-one thousand, three hundred five".