144253140140521 has 4 divisors (see below), whose sum is σ = 144282394483344. Its totient is φ = 144223885797700.

The previous prime is 144253140140423. The next prime is 144253140140539. The reversal of 144253140140521 is 125041041352441.

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 144253140140521 - 2⁹ = 144253140140009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144253140140591) 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, 14627164015 + ... + 14627173876.

It is an arithmetic number, because the mean of its divisors is an integer number (36070598620836).

Almost surely, 2^{144253140140521} is an apocalyptic number.

It is an amenable number.

144253140140521 is a deficient number, since it is larger than the sum of its proper divisors (29254342823).

144253140140521 is an equidigital number, since it uses as much as digits as its factorization.

144253140140521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29254342822.

The product of its (nonzero) digits is 76800, while the sum is 37.

Adding to 144253140140521 its reverse (125041041352441), we get a palindrome (269294181492962).

The spelling of 144253140140521 in words is "one hundred forty-four trillion, two hundred fifty-three billion, one hundred forty million, one hundred forty thousand, five hundred twenty-one".