2129166 has 48 divisors (see below), whose sum is σ = 5167344. Its totient is φ = 653184.

The previous prime is 2129161. The next prime is 2129167. The reversal of 2129166 is 6619212.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6150 + ... + 6486.

It is an arithmetic number, because the mean of its divisors is an integer number (107653).

2^2129166 is an apocalyptic number.

2129166 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2129166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2583672).

2129166 is an abundant number, since it is smaller than the sum of its proper divisors (3038178).

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

2129166 is a wasteful number, since it uses less digits than its factorization.

2129166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 355 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 2129166 is about 1459.1662002664. The cubic root of 2129166 is about 128.6480400550.

The spelling of 2129166 in words is "two million, one hundred twenty-nine thousand, one hundred sixty-six".