143345809169 has 2 divisors, whose sum is σ = 143345809170. Its totient is φ = 143345809168.

The previous prime is 143345809147. The next prime is 143345809199. The reversal of 143345809169 is 961908543341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138692932225 + 4652876944 = 372415^2 + 68212^2 .

It is a cyclic number.

It is not a de Polignac number, because 143345809169 - 2¹² = 143345805073 is a prime.

It is a super-2 number, since 2×143345809169² (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 143345809169.

It is not a weakly prime, because it can be changed into another prime (143345809199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71672904584 + 71672904585.

It is an arithmetic number, because the mean of its divisors is an integer number (71672904585).

Almost surely, 2^143345809169 is an apocalyptic number.

It is an amenable number.

143345809169 is a deficient number, since it is larger than the sum of its proper divisors (1).

143345809169 is an equidigital number, since it uses as much as digits as its factorization.

143345809169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 143345809169 in words is "one hundred forty-three billion, three hundred forty-five million, eight hundred nine thousand, one hundred sixty-nine".