318105241 has 4 divisors (see below), whose sum is σ = 336817332. Its totient is φ = 299393152.

The previous prime is 318105223. The next prime is 318105247. The reversal of 318105241 is 142501813.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142501813 = 23 ⋅6195731.

It can be written as a sum of positive squares in 2 ways, for example, as 153239641 + 164865600 = 12379^2 + 12840^2 .

It is a cyclic number.

It is not a de Polignac number, because 318105241 - 2⁵ = 318105209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318105247) 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 3 ways as a sum of consecutive naturals, for example, 9356020 + ... + 9356053.

It is an arithmetic number, because the mean of its divisors is an integer number (84204333).

Almost surely, 2^318105241 is an apocalyptic number.

It is an amenable number.

318105241 is a deficient number, since it is larger than the sum of its proper divisors (18712091).

318105241 is a wasteful number, since it uses less digits than its factorization.

318105241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18712090.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 318105241 is about 17835.5050671407. The cubic root of 318105241 is about 682.6377085747.

The spelling of 318105241 in words is "three hundred eighteen million, one hundred five thousand, two hundred forty-one".