144313255521 has 12 divisors (see below), whose sum is σ = 208473003648. Its totient is φ = 96199364664.

The previous prime is 144313255439. The next prime is 144313255523. The reversal of 144313255521 is 125552313441.

144313255521 is a `hidden beast` number, since 1 + 44 + 31 + 32 + 5 + 552 + 1 = 666.

It is not a de Polignac number, because 144313255521 - 2¹⁴ = 144313239137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144313255523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 692245 + ... + 876258.

It is an arithmetic number, because the mean of its divisors is an integer number (17372750304).

Almost surely, 2^144313255521 is an apocalyptic number.

It is an amenable number.

144313255521 is a deficient number, since it is larger than the sum of its proper divisors (64159748127).

144313255521 is a wasteful number, since it uses less digits than its factorization.

144313255521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578732 (or 1578729 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

Adding to 144313255521 its reverse (125552313441), we get a palindrome (269865568962).

The spelling of 144313255521 in words is "one hundred forty-four billion, three hundred thirteen million, two hundred fifty-five thousand, five hundred twenty-one".