143941849 has 2 divisors, whose sum is σ = 143941850. Its totient is φ = 143941848.

The previous prime is 143941801. The next prime is 143941859. The reversal of 143941849 is 948149341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115777600 + 28164249 = 10760^2 + 5307^2 .

It is an emirp because it is prime and its reverse (948149341) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143941849 is a prime.

It is not a weakly prime, because it can be changed into another prime (143941859) 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, 71970924 + 71970925.

It is an arithmetic number, because the mean of its divisors is an integer number (71970925).

Almost surely, 2^143941849 is an apocalyptic number.

It is an amenable number.

143941849 is a deficient number, since it is larger than the sum of its proper divisors (1).

143941849 is an equidigital number, since it uses as much as digits as its factorization.

143941849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 43.

The square root of 143941849 is about 11997.5767970036. The cubic root of 143941849 is about 524.0777143734.

The spelling of 143941849 in words is "one hundred forty-three million, nine hundred forty-one thousand, eight hundred forty-nine".