143825866609 has 2 divisors, whose sum is σ = 143825866610. Its totient is φ = 143825866608.

The previous prime is 143825866549. The next prime is 143825866663. The reversal of 143825866609 is 906668528341.

143825866609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140060817009 + 3765049600 = 374247^2 + 61360^2 .

It is a cyclic number.

It is not a de Polignac number, because 143825866609 - 2¹⁵ = 143825833841 is a prime.

It is a super-2 number, since 2×143825866609² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (143825866669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71912933304 + 71912933305.

It is an arithmetic number, because the mean of its divisors is an integer number (71912933305).

Almost surely, 2^143825866609 is an apocalyptic number.

It is an amenable number.

143825866609 is a deficient number, since it is larger than the sum of its proper divisors (1).

143825866609 is an equidigital number, since it uses as much as digits as its factorization.

143825866609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14929920, while the sum is 58.

The spelling of 143825866609 in words is "one hundred forty-three billion, eight hundred twenty-five million, eight hundred sixty-six thousand, six hundred nine".