143420243 has 2 divisors, whose sum is σ = 143420244. Its totient is φ = 143420242.

The previous prime is 143420239. The next prime is 143420293. The reversal of 143420243 is 342024341.

It is a weak prime.

It is an emirp because it is prime and its reverse (342024341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143420243 - 2² = 143420239 is a prime.

It is a super-2 number, since 2×143420243² = 41138732204358098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (143420293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71710121 + 71710122.

It is an arithmetic number, because the mean of its divisors is an integer number (71710122).

Almost surely, 2^143420243 is an apocalyptic number.

143420243 is a deficient number, since it is larger than the sum of its proper divisors (1).

143420243 is an equidigital number, since it uses as much as digits as its factorization.

143420243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 143420243 is about 11975.8190951600. The cubic root of 143420243 is about 523.4439099469.

Adding to 143420243 its reverse (342024341), we get a palindrome (485444584).

The spelling of 143420243 in words is "one hundred forty-three million, four hundred twenty thousand, two hundred forty-three".