144117021388 has 24 divisors (see below), whose sum is σ = 257771102400. Its totient is φ = 70470519168.

The previous prime is 144117021383. The next prime is 144117021397. The reversal of 144117021388 is 883120711441.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 144117021388.

It is not an unprimeable number, because it can be changed into a prime (144117021383) 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 7 ways as a sum of consecutive naturals, for example, 55023 + ... + 539686.

It is an arithmetic number, because the mean of its divisors is an integer number (10740462600).

Almost surely, 2^144117021388 is an apocalyptic number.

It is an amenable number.

144117021388 is a deficient number, since it is larger than the sum of its proper divisors (113654081012).

144117021388 is a wasteful number, since it uses less digits than its factorization.

144117021388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596049 (or 596047 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The spelling of 144117021388 in words is "one hundred forty-four billion, one hundred seventeen million, twenty-one thousand, three hundred eighty-eight".