144574312520 has 128 divisors (see below), whose sum is σ = 360624476160. Its totient is φ = 51721148160.

The previous prime is 144574312507. The next prime is 144574312529. The reversal of 144574312520 is 25213475441.

It is not an unprimeable number, because it can be changed into a prime (144574312529) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26735657 + ... + 26741063.

It is an arithmetic number, because the mean of its divisors is an integer number (2817378720).

Almost surely, 2^144574312520 is an apocalyptic number.

144574312520 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 144574312520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180312238080).

144574312520 is an abundant number, since it is smaller than the sum of its proper divisors (216050163640).

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

144574312520 is a wasteful number, since it uses less digits than its factorization.

144574312520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6403 (or 6399 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 38.

Adding to 144574312520 its reverse (25213475441), we get a palindrome (169787787961).

The spelling of 144574312520 in words is "one hundred forty-four billion, five hundred seventy-four million, three hundred twelve thousand, five hundred twenty".