144556021107391 has 2 divisors, whose sum is σ = 144556021107392. Its totient is φ = 144556021107390.

The previous prime is 144556021107359. The next prime is 144556021107473. The reversal of 144556021107391 is 193701120655441.

144556021107391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144556021107391 - 2⁵ = 144556021107359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144556021107341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72278010553695 + 72278010553696.

It is an arithmetic number, because the mean of its divisors is an integer number (72278010553696).

Almost surely, 2^{144556021107391} is an apocalyptic number.

144556021107391 is a deficient number, since it is larger than the sum of its proper divisors (1).

144556021107391 is an equidigital number, since it uses as much as digits as its factorization.

144556021107391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 144556021107391 in words is "one hundred forty-four trillion, five hundred fifty-six billion, twenty-one million, one hundred seven thousand, three hundred ninety-one".