144540313021 has 8 divisors (see below), whose sum is σ = 156050891864. Its totient is φ = 133085747520.

The previous prime is 144540313007. The next prime is 144540313037. The reversal of 144540313021 is 120313045441.

144540313021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10108090521 + 134432222500 = 100539^2 + 366650^2 .

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 144540313021 - 2⁵ = 144540312989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144540313091) 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, 13997970 + ... + 14008291.

It is an arithmetic number, because the mean of its divisors is an integer number (19506361483).

Almost surely, 2^144540313021 is an apocalyptic number.

It is an amenable number.

144540313021 is a deficient number, since it is larger than the sum of its proper divisors (11510578843).

144540313021 is a wasteful number, since it uses less digits than its factorization.

144540313021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28006671.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 144540313021 its reverse (120313045441), we get a palindrome (264853358462).

The spelling of 144540313021 in words is "one hundred forty-four billion, five hundred forty million, three hundred thirteen thousand, twenty-one".