143730569 has 2 divisors, whose sum is σ = 143730570. Its totient is φ = 143730568.

The previous prime is 143730551. The next prime is 143730571. The reversal of 143730569 is 965037341.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106337344 + 37393225 = 10312^2 + 6115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143730569 is a prime.

It is a super-2 number, since 2×143730569² = 41316952930127522, which contains 22 as substring.

Together with 143730571, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (143730589) 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, 71865284 + 71865285.

It is an arithmetic number, because the mean of its divisors is an integer number (71865285).

Almost surely, 2^143730569 is an apocalyptic number.

It is an amenable number.

143730569 is a deficient number, since it is larger than the sum of its proper divisors (1).

143730569 is an equidigital number, since it uses as much as digits as its factorization.

143730569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 143730569 is about 11988.7684521806. The cubic root of 143730569 is about 523.8211724432.

The spelling of 143730569 in words is "one hundred forty-three million, seven hundred thirty thousand, five hundred sixty-nine".