144120321551 has 8 divisors (see below), whose sum is σ = 151791905664. Its totient is φ = 136565861080.

The previous prime is 144120321547. The next prime is 144120321557. The reversal of 144120321551 is 155123021441.

It is a happy number.

144120321551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144120321551 - 2² = 144120321547 is a prime.

It is a super-4 number, since 4×144120321551⁴ (a number of 46 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144120321557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29278385 + ... + 29283306.

It is an arithmetic number, because the mean of its divisors is an integer number (18973988208).

Almost surely, 2^144120321551 is an apocalyptic number.

144120321551 is a deficient number, since it is larger than the sum of its proper divisors (7671584113).

144120321551 is a wasteful number, since it uses less digits than its factorization.

144120321551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58561821.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 144120321551 its reverse (155123021441), we get a palindrome (299243342992).

The spelling of 144120321551 in words is "one hundred forty-four billion, one hundred twenty million, three hundred twenty-one thousand, five hundred fifty-one".