318584969 has 2 divisors, whose sum is σ = 318584970. Its totient is φ = 318584968.

The previous prime is 318584963. The next prime is 318585011. The reversal of 318584969 is 969485813.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218684944 + 99900025 = 14788^2 + 9995^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-318584969 is a prime.

It is a super-2 number, since 2×318584969² = 202992764945461922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 318584969.

It is not a weakly prime, because it can be changed into another prime (318584963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159292484 + 159292485.

It is an arithmetic number, because the mean of its divisors is an integer number (159292485).

Almost surely, 2^318584969 is an apocalyptic number.

It is an amenable number.

318584969 is a deficient number, since it is larger than the sum of its proper divisors (1).

318584969 is an equidigital number, since it uses as much as digits as its factorization.

318584969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 53.

The square root of 318584969 is about 17848.9486805246. The cubic root of 318584969 is about 682.9806935328.

The spelling of 318584969 in words is "three hundred eighteen million, five hundred eighty-four thousand, nine hundred sixty-nine".