144502501540 has 12 divisors (see below), whose sum is σ = 303455253276. Its totient is φ = 57801000608.

The previous prime is 144502501501. The next prime is 144502501613. The reversal of 144502501540 is 45105205441.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 59251349056 + 85251152484 = 243416^2 + 291978^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3612562519 + ... + 3612562558.

It is an arithmetic number, because the mean of its divisors is an integer number (25287937773).

Almost surely, 2^144502501540 is an apocalyptic number.

144502501540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144502501540 is an abundant number, since it is smaller than the sum of its proper divisors (158952751736).

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

144502501540 is a wasteful number, since it uses less digits than its factorization.

144502501540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7225125086 (or 7225125084 counting only the distinct ones).

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

Adding to 144502501540 its reverse (45105205441), we get a palindrome (189607706981).

The spelling of 144502501540 in words is "one hundred forty-four billion, five hundred two million, five hundred one thousand, five hundred forty".