144517152021 has 16 divisors (see below), whose sum is σ = 210231068160. Its totient is φ = 87576027120.

The previous prime is 144517151993. The next prime is 144517152029. The reversal of 144517152021 is 120251715441.

144517152021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144517152021 - 2¹³ = 144517143829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144517152029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41760 + ... + 539238.

It is an arithmetic number, because the mean of its divisors is an integer number (13139441760).

Almost surely, 2^144517152021 is an apocalyptic number.

144517152021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

144517152021 is a deficient number, since it is larger than the sum of its proper divisors (65713916139).

144517152021 is a wasteful number, since it uses less digits than its factorization.

144517152021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506296.

The product of its (nonzero) digits is 11200, while the sum is 33.

Adding to 144517152021 its reverse (120251715441), we get a palindrome (264768867462).

The spelling of 144517152021 in words is "one hundred forty-four billion, five hundred seventeen million, one hundred fifty-two thousand, twenty-one".