144563521117 has 2 divisors, whose sum is σ = 144563521118. Its totient is φ = 144563521116.

The previous prime is 144563521079. The next prime is 144563521127. The reversal of 144563521117 is 711125365441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136068027876 + 8495493241 = 368874^2 + 92171^2 .

It is a cyclic number.

It is not a de Polignac number, because 144563521117 - 2³⁵ = 110203782749 is a prime.

It is a super-2 number, since 2×144563521117² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144563521117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144563521127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72281760558 + 72281760559.

It is an arithmetic number, because the mean of its divisors is an integer number (72281760559).

Almost surely, 2^144563521117 is an apocalyptic number.

It is an amenable number.

144563521117 is a deficient number, since it is larger than the sum of its proper divisors (1).

144563521117 is an equidigital number, since it uses as much as digits as its factorization.

144563521117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 40.

Adding to 144563521117 its reverse (711125365441), we get a palindrome (855688886558).

The spelling of 144563521117 in words is "one hundred forty-four billion, five hundred sixty-three million, five hundred twenty-one thousand, one hundred seventeen".