3121118 has 32 divisors (see below), whose sum is σ = 6289920. Its totient is φ = 1121760.

The previous prime is 3121109. The next prime is 3121121. The reversal of 3121118 is 8111213.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3121096 and 3121105.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1223 + ... + 2781.

It is an arithmetic number, because the mean of its divisors is an integer number (196560).

Almost surely, 2^3121118 is an apocalyptic number.

3121118 is an abundant number, since it is smaller than the sum of its proper divisors (3168802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3121118 is a wasteful number, since it uses less digits than its factorization.

3121118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592.

The product of its digits is 48, while the sum is 17.

The square root of 3121118 is about 1766.6686163511. The cubic root of 3121118 is about 146.1403229621.

It can be divided in two parts, 3 and 121118, that added together give a palindrome (121121).

The spelling of 3121118 in words is "three million, one hundred twenty-one thousand, one hundred eighteen".