143828609 has 2 divisors, whose sum is σ = 143828610. Its totient is φ = 143828608.

The previous prime is 143828599. The next prime is 143828611. The reversal of 143828609 is 906828341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76177984 + 67650625 = 8728^2 + 8225^2 .

It is an emirp because it is prime and its reverse (906828341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143828609 - 2¹⁶ = 143763073 is a prime.

It is a Sophie Germain prime.

Together with 143828611, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (143828669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71914304 + 71914305.

It is an arithmetic number, because the mean of its divisors is an integer number (71914305).

Almost surely, 2^143828609 is an apocalyptic number.

It is an amenable number.

143828609 is a deficient number, since it is larger than the sum of its proper divisors (1).

143828609 is an equidigital number, since it uses as much as digits as its factorization.

143828609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 143828609 is about 11992.8565821492. The cubic root of 143828609 is about 523.9402465224.

The spelling of 143828609 in words is "one hundred forty-three million, eight hundred twenty-eight thousand, six hundred nine".