316421069 has 2 divisors, whose sum is σ = 316421070. Its totient is φ = 316421068.

The previous prime is 316421057. The next prime is 316421089. The reversal of 316421069 is 960124613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197065444 + 119355625 = 14038^2 + 10925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316421069 is a prime.

It is a super-2 number, since 2×316421069² = 200244585814205522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316421089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158210534 + 158210535.

It is an arithmetic number, because the mean of its divisors is an integer number (158210535).

Almost surely, 2^316421069 is an apocalyptic number.

It is an amenable number.

316421069 is a deficient number, since it is larger than the sum of its proper divisors (1).

316421069 is an equidigital number, since it uses as much as digits as its factorization.

316421069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 316421069 is about 17788.2283828379. The cubic root of 316421069 is about 681.4308603327.

The spelling of 316421069 in words is "three hundred sixteen million, four hundred twenty-one thousand, sixty-nine".