143820071 has 2 divisors, whose sum is σ = 143820072. Its totient is φ = 143820070.

The previous prime is 143820041. The next prime is 143820097. The reversal of 143820071 is 170028341.

It is an a-pointer prime, because the next prime (143820097) can be obtained adding 143820071 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143820071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143820071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143820011) 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, 71910035 + 71910036.

It is an arithmetic number, because the mean of its divisors is an integer number (71910036).

Almost surely, 2^143820071 is an apocalyptic number.

143820071 is a deficient number, since it is larger than the sum of its proper divisors (1).

143820071 is an equidigital number, since it uses as much as digits as its factorization.

143820071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 143820071 is about 11992.5006149677. The cubic root of 143820071 is about 523.9298788810.

The spelling of 143820071 in words is "one hundred forty-three million, eight hundred twenty thousand, seventy-one".