143473669 has 2 divisors, whose sum is σ = 143473670. Its totient is φ = 143473668.

The previous prime is 143473667. The next prime is 143473709. The reversal of 143473669 is 966374341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126292644 + 17181025 = 11238^2 + 4145^2 .

It is an emirp because it is prime and its reverse (966374341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143473669 - 2¹ = 143473667 is a prime.

It is a super-2 number, since 2×143473669² = 41169387392643122, which contains 22 as substring.

Together with 143473667, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143473667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71736834 + 71736835.

It is an arithmetic number, because the mean of its divisors is an integer number (71736835).

Almost surely, 2^143473669 is an apocalyptic number.

It is an amenable number.

143473669 is a deficient number, since it is larger than the sum of its proper divisors (1).

143473669 is an equidigital number, since it uses as much as digits as its factorization.

143473669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 43.

The square root of 143473669 is about 11978.0494655850. The cubic root of 143473669 is about 523.5088985472.

The spelling of 143473669 in words is "one hundred forty-three million, four hundred seventy-three thousand, six hundred sixty-nine".