105143654665789 has 2 divisors, whose sum is σ = 105143654665790. Its totient is φ = 105143654665788.

The previous prime is 105143654665711. The next prime is 105143654665817. The reversal of 105143654665789 is 987566456341501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105143654665764 + 25 = 10253958^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 105143654665789 - 2⁹ = 105143654665277 is a prime.

It is a super-2 number, since 2×105143654665789² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105143654615789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52571827332894 + 52571827332895.

It is an arithmetic number, because the mean of its divisors is an integer number (52571827332895).

Almost surely, 2^{105143654665789} is an apocalyptic number.

It is an amenable number.

105143654665789 is a deficient number, since it is larger than the sum of its proper divisors (1).

105143654665789 is an equidigital number, since it uses as much as digits as its factorization.

105143654665789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184000, while the sum is 70.

The spelling of 105143654665789 in words is "one hundred five trillion, one hundred forty-three billion, six hundred fifty-four million, six hundred sixty-five thousand, seven hundred eighty-nine".