144133421521 has 8 divisors (see below), whose sum is σ = 148629222144. Its totient is φ = 139697168160.

The previous prime is 144133421519. The next prime is 144133421543. The reversal of 144133421521 is 125124331441.

It is a happy number.

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 144133421521 - 2¹ = 144133421519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144133421021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14881900 + ... + 14891581.

It is an arithmetic number, because the mean of its divisors is an integer number (18578652768).

Almost surely, 2^144133421521 is an apocalyptic number.

It is an amenable number.

144133421521 is a deficient number, since it is larger than the sum of its proper divisors (4495800623).

144133421521 is a wasteful number, since it uses less digits than its factorization.

144133421521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29773631.

The product of its digits is 11520, while the sum is 31.

Adding to 144133421521 its reverse (125124331441), we get a palindrome (269257752962).

The spelling of 144133421521 in words is "one hundred forty-four billion, one hundred thirty-three million, four hundred twenty-one thousand, five hundred twenty-one".