3133818 has 12 divisors (see below), whose sum is σ = 6789978. Its totient is φ = 1044600.

The previous prime is 3133811. The next prime is 3133843. The reversal of 3133818 is 8183313.

It can be written as a sum of positive squares in only one way, i.e., 2812329 + 321489 = 1677^2 + 567^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3133791 and 3133800.

It is not an unprimeable number, because it can be changed into a prime (3133811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 87033 + ... + 87068.

Almost surely, 2^3133818 is an apocalyptic number.

3133818 is an abundant number, since it is smaller than the sum of its proper divisors (3656160).

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

3133818 is a wasteful number, since it uses less digits than its factorization.

3133818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174109 (or 174106 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 3133818 is about 1770.2593030401. The cubic root of 3133818 is about 146.3382723735.

The spelling of 3133818 in words is "three million, one hundred thirty-three thousand, eight hundred eighteen".