144535330221 has 8 divisors (see below), whose sum is σ = 192840315360. Its totient is φ = 96293615952.

The previous prime is 144535330211. The next prime is 144535330273. The reversal of 144535330221 is 122033535441.

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

It is not a de Polignac number, because 144535330221 - 2⁶ = 144535330157 is a prime.

It is a super-3 number, since 3×144535330221³ (a number of 34 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144535330211) 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, 15812386 + ... + 15821523.

It is an arithmetic number, because the mean of its divisors is an integer number (24105039420).

Almost surely, 2^144535330221 is an apocalyptic number.

It is an amenable number.

144535330221 is a deficient number, since it is larger than the sum of its proper divisors (48304985139).

144535330221 is a wasteful number, since it uses less digits than its factorization.

144535330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31635435.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 144535330221 its reverse (122033535441), we get a palindrome (266568865662).

The spelling of 144535330221 in words is "one hundred forty-four billion, five hundred thirty-five million, three hundred thirty thousand, two hundred twenty-one".