318228361 has 8 divisors (see below), whose sum is σ = 358357248. Its totient is φ = 279966000.

The previous prime is 318228341. The next prime is 318228367. The reversal of 318228361 is 163822813.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 318228361 - 2⁵ = 318228329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318228367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 466270 + ... + 466951.

It is an arithmetic number, because the mean of its divisors is an integer number (44794656).

Almost surely, 2^318228361 is an apocalyptic number.

318228361 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

318228361 is a deficient number, since it is larger than the sum of its proper divisors (40128887).

318228361 is a wasteful number, since it uses less digits than its factorization.

318228361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933263.

The product of its digits is 13824, while the sum is 34.

The square root of 318228361 is about 17838.9562755224. The cubic root of 318228361 is about 682.7257669728.

The spelling of 318228361 in words is "three hundred eighteen million, two hundred twenty-eight thousand, three hundred sixty-one".