3183128 has 32 divisors (see below), whose sum is σ = 6504960. Its totient is φ = 1451520.

The previous prime is 3183119. The next prime is 3183137. The reversal of 3183128 is 8213813.

It is an interprime number because it is at equal distance from previous prime (3183119) and next prime (3183137).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 3183097 and 3183106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13088 + ... + 13328.

It is an arithmetic number, because the mean of its divisors is an integer number (203280).

Almost surely, 2^3183128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3183128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3252480).

3183128 is an abundant number, since it is smaller than the sum of its proper divisors (3321832).

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

3183128 is a wasteful number, since it uses less digits than its factorization.

3183128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387 (or 383 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 3183128 is about 1784.1322820912. The cubic root of 3183128 is about 147.1018160229.

The spelling of 3183128 in words is "three million, one hundred eighty-three thousand, one hundred twenty-eight".