143861243 has 2 divisors, whose sum is σ = 143861244. Its totient is φ = 143861242.

The previous prime is 143861227. The next prime is 143861303. The reversal of 143861243 is 342168341.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 143861243 - 2⁴ = 143861227 is a prime.

It is not a weakly prime, because it can be changed into another prime (143861203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71930621 + 71930622.

It is an arithmetic number, because the mean of its divisors is an integer number (71930622).

Almost surely, 2^143861243 is an apocalyptic number.

143861243 is a deficient number, since it is larger than the sum of its proper divisors (1).

143861243 is an equidigital number, since it uses as much as digits as its factorization.

143861243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 32.

The square root of 143861243 is about 11994.2170649026. The cubic root of 143861243 is about 523.9798700093.

The spelling of 143861243 in words is "one hundred forty-three million, eight hundred sixty-one thousand, two hundred forty-three".