3118855 has 4 divisors (see below), whose sum is σ = 3742632. Its totient is φ = 2495080.

The previous prime is 3118853. The next prime is 3118859. The reversal of 3118855 is 5588113.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3118855 - 2¹ = 3118853 is a prime.

It is a super-2 number, since 2×3118855² = 19454513022050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3118853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311881 + ... + 311890.

It is an arithmetic number, because the mean of its divisors is an integer number (935658).

Almost surely, 2^3118855 is an apocalyptic number.

3118855 is a deficient number, since it is larger than the sum of its proper divisors (623777).

3118855 is an equidigital number, since it uses as much as digits as its factorization.

3118855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623776.

The product of its digits is 4800, while the sum is 31.

The square root of 3118855 is about 1766.0280292226. The cubic root of 3118855 is about 146.1049942207.

The spelling of 3118855 in words is "three million, one hundred eighteen thousand, eight hundred fifty-five".