144225521500 has 48 divisors (see below), whose sum is σ = 315305565120. Its totient is φ = 57632145600.

The previous prime is 144225521497. The next prime is 144225521509. The reversal of 144225521500 is 5125522441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144225521509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353841 + ... + 643159.

It is an arithmetic number, because the mean of its divisors is an integer number (6568865940).

Almost surely, 2^144225521500 is an apocalyptic number.

144225521500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144225521500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157652782560).

144225521500 is an abundant number, since it is smaller than the sum of its proper divisors (171080043620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144225521500 is a wasteful number, since it uses less digits than its factorization.

144225521500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290335 (or 290323 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

The spelling of 144225521500 in words is "one hundred forty-four billion, two hundred twenty-five million, five hundred twenty-one thousand, five hundred".