144543561493 has 2 divisors, whose sum is σ = 144543561494. Its totient is φ = 144543561492.

The previous prime is 144543561427. The next prime is 144543561517. The reversal of 144543561493 is 394165345441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135654465969 + 8889095524 = 368313^2 + 94282^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144543561493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144543561403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72271780746 + 72271780747.

It is an arithmetic number, because the mean of its divisors is an integer number (72271780747).

Almost surely, 2^144543561493 is an apocalyptic number.

It is an amenable number.

144543561493 is a deficient number, since it is larger than the sum of its proper divisors (1).

144543561493 is an equidigital number, since it uses as much as digits as its factorization.

144543561493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3110400, while the sum is 49.

The spelling of 144543561493 in words is "one hundred forty-four billion, five hundred forty-three million, five hundred sixty-one thousand, four hundred ninety-three".