144142146455321 has 4 divisors (see below), whose sum is σ = 164733881663232. Its totient is φ = 123550411247412.

The previous prime is 144142146455317. The next prime is 144142146455393. The reversal of 144142146455321 is 123554641241441.

144142146455321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 144142146455321 - 2² = 144142146455317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144142146455311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10295867603945 + ... + 10295867603958.

It is an arithmetic number, because the mean of its divisors is an integer number (41183470415808).

Almost surely, 2^{144142146455321} is an apocalyptic number.

It is an amenable number.

144142146455321 is a deficient number, since it is larger than the sum of its proper divisors (20591735207911).

144142146455321 is an equidigital number, since it uses as much as digits as its factorization.

144142146455321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20591735207910.

The product of its digits is 1843200, while the sum is 47.

Adding to 144142146455321 its reverse (123554641241441), we get a palindrome (267696787696762).

The spelling of 144142146455321 in words is "one hundred forty-four trillion, one hundred forty-two billion, one hundred forty-six million, four hundred fifty-five thousand, three hundred twenty-one".