144520142538 has 16 divisors (see below), whose sum is σ = 289068615360. Its totient is φ = 48168659136.

The previous prime is 144520142527. The next prime is 144520142549. The reversal of 144520142538 is 835241025441.

It is an interprime number because it is at equal distance from previous prime (144520142527) and next prime (144520142549).

It is a junction number, because it is equal to n+sod(n) for n = 144520142496 and 144520142505.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1113823 + ... + 1236786.

It is an arithmetic number, because the mean of its divisors is an integer number (18066788460).

Almost surely, 2^144520142538 is an apocalyptic number.

144520142538 is an abundant number, since it is smaller than the sum of its proper divisors (144548472822).

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

144520142538 is a wasteful number, since it uses less digits than its factorization.

144520142538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360861.

The product of its (nonzero) digits is 153600, while the sum is 39.

Adding to 144520142538 its reverse (835241025441), we get a palindrome (979761167979).

The spelling of 144520142538 in words is "one hundred forty-four billion, five hundred twenty million, one hundred forty-two thousand, five hundred thirty-eight".