318822081 has 16 divisors (see below), whose sum is σ = 446745024. Its totient is φ = 201991104.

The previous prime is 318822061. The next prime is 318822089. The reversal of 318822081 is 180228813.

It is not a de Polignac number, because 318822081 - 2¹⁵ = 318789313 is a prime.

It is a super-2 number, since 2×318822081² = 203295038666341122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (318822089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28626 + ... + 38171.

It is an arithmetic number, because the mean of its divisors is an integer number (27921564).

Almost surely, 2^318822081 is an apocalyptic number.

It is an amenable number.

318822081 is a deficient number, since it is larger than the sum of its proper divisors (127922943).

318822081 is a wasteful number, since it uses less digits than its factorization.

318822081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66880.

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 318822081 is about 17855.5896290209. The cubic root of 318822081 is about 683.1500913119.

The spelling of 318822081 in words is "three hundred eighteen million, eight hundred twenty-two thousand, eighty-one".