143213071 has 2 divisors, whose sum is σ = 143213072. Its totient is φ = 143213070.

The previous prime is 143213069. The next prime is 143213093. The reversal of 143213071 is 170312341.

It is an a-pointer prime, because the next prime (143213093) can be obtained adding 143213071 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 143213071 - 2¹ = 143213069 is a prime.

Together with 143213069, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143213011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71606535 + 71606536.

It is an arithmetic number, because the mean of its divisors is an integer number (71606536).

Almost surely, 2^143213071 is an apocalyptic number.

143213071 is a deficient number, since it is larger than the sum of its proper divisors (1).

143213071 is an equidigital number, since it uses as much as digits as its factorization.

143213071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 143213071 is about 11967.1663730392. The cubic root of 143213071 is about 523.1917484737.

The spelling of 143213071 in words is "one hundred forty-three million, two hundred thirteen thousand, seventy-one".