143929549 has 2 divisors, whose sum is σ = 143929550. Its totient is φ = 143929548.

The previous prime is 143929543. The next prime is 143929613. The reversal of 143929549 is 945929341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99800100 + 44129449 = 9990^2 + 6643^2 .

It is a cyclic number.

It is not a de Polignac number, because 143929549 - 2¹¹ = 143927501 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 143929499 and 143929508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143929543) 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, 71964774 + 71964775.

It is an arithmetic number, because the mean of its divisors is an integer number (71964775).

Almost surely, 2^143929549 is an apocalyptic number.

It is an amenable number.

143929549 is a deficient number, since it is larger than the sum of its proper divisors (1).

143929549 is an equidigital number, since it uses as much as digits as its factorization.

143929549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 46.

The square root of 143929549 is about 11997.0641825407. The cubic root of 143929549 is about 524.0627862629.

The spelling of 143929549 in words is "one hundred forty-three million, nine hundred twenty-nine thousand, five hundred forty-nine".