316220143 has 2 divisors, whose sum is σ = 316220144. Its totient is φ = 316220142.

The previous prime is 316220129. The next prime is 316220161. The reversal of 316220143 is 341022613.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 316220143 - 2¹⁷ = 316089071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316229143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158110071 + 158110072.

It is an arithmetic number, because the mean of its divisors is an integer number (158110072).

Almost surely, 2^316220143 is an apocalyptic number.

316220143 is a deficient number, since it is larger than the sum of its proper divisors (1).

316220143 is an equidigital number, since it uses as much as digits as its factorization.

316220143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 316220143 is about 17782.5797622280. The cubic root of 316220143 is about 681.2865945833.

Adding to 316220143 its reverse (341022613), we get a palindrome (657242756).

The spelling of 316220143 in words is "three hundred sixteen million, two hundred twenty thousand, one hundred forty-three".