144254512240 has 80 divisors (see below), whose sum is σ = 339071423040. Its totient is φ = 57069527040.

The previous prime is 144254512223. The next prime is 144254512243. The reversal of 144254512240 is 42215452441.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 144254512196 and 144254512205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144254512243) 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, 13877445 + ... + 13887835.

It is an arithmetic number, because the mean of its divisors is an integer number (4238392788).

Almost surely, 2^144254512240 is an apocalyptic number.

144254512240 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 144254512240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169535711520).

144254512240 is an abundant number, since it is smaller than the sum of its proper divisors (194816910800).

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

144254512240 is a wasteful number, since it uses less digits than its factorization.

144254512240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12290 (or 12284 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 34.

Adding to 144254512240 its reverse (42215452441), we get a palindrome (186469964681).

The spelling of 144254512240 in words is "one hundred forty-four billion, two hundred fifty-four million, five hundred twelve thousand, two hundred forty".