144452067721 has 8 divisors (see below), whose sum is σ = 155598344384. Its totient is φ = 133310730960.

The previous prime is 144452067713. The next prime is 144452067731. The reversal of 144452067721 is 127760254441.

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 144452067721 - 2³ = 144452067713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144452067731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1174125 + ... + 1291306.

It is an arithmetic number, because the mean of its divisors is an integer number (19449793048).

Almost surely, 2^144452067721 is an apocalyptic number.

It is an amenable number.

144452067721 is a deficient number, since it is larger than the sum of its proper divisors (11146276663).

144452067721 is a wasteful number, since it uses less digits than its factorization.

144452067721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469951.

The product of its (nonzero) digits is 376320, while the sum is 43.

The spelling of 144452067721 in words is "one hundred forty-four billion, four hundred fifty-two million, sixty-seven thousand, seven hundred twenty-one".