318484121 has 2 divisors, whose sum is σ = 318484122. Its totient is φ = 318484120.

The previous prime is 318484093. The next prime is 318484147. The reversal of 318484121 is 121484813.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 257955721 + 60528400 = 16061^2 + 7780^2 .

It is an emirp because it is prime and its reverse (121484813) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 318484121 - 2¹⁸ = 318221977 is a prime.

It is not a weakly prime, because it can be changed into another prime (318484021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159242060 + 159242061.

It is an arithmetic number, because the mean of its divisors is an integer number (159242061).

Almost surely, 2^318484121 is an apocalyptic number.

It is an amenable number.

318484121 is a deficient number, since it is larger than the sum of its proper divisors (1).

318484121 is an equidigital number, since it uses as much as digits as its factorization.

318484121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6144, while the sum is 32.

The square root of 318484121 is about 17846.1234165855. The cubic root of 318484121 is about 682.9086201325.

The spelling of 318484121 in words is "three hundred eighteen million, four hundred eighty-four thousand, one hundred twenty-one".