3128166 has 32 divisors (see below), whose sum is σ = 7089120. Its totient is φ = 1022112.

The previous prime is 3128159. The next prime is 3128171. The reversal of 3128166 is 6618213.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2316 + ... + 3408.

It is an arithmetic number, because the mean of its divisors is an integer number (221535).

Almost surely, 2^3128166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3128166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3544560).

3128166 is an abundant number, since it is smaller than the sum of its proper divisors (3960954).

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

3128166 is a wasteful number, since it uses less digits than its factorization.

3128166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157 (or 1151 counting only the distinct ones).

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

The square root of 3128166 is about 1768.6622063017. The cubic root of 3128166 is about 146.2502432606.

The spelling of 3128166 in words is "three million, one hundred twenty-eight thousand, one hundred sixty-six".