2128158 has 24 divisors (see below), whose sum is σ = 4650048. Its totient is φ = 703392.

The previous prime is 2128157. The next prime is 2128177. The reversal of 2128158 is 8518212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2035 + ... + 2897.

It is an arithmetic number, because the mean of its divisors is an integer number (193752).

2^2128158 is an apocalyptic number.

2128158 is an abundant number, since it is smaller than the sum of its proper divisors (2521890).

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

2128158 is a wasteful number, since it uses less digits than its factorization.

2128158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008 (or 1005 counting only the distinct ones).

The product of its digits is 1280, while the sum is 27.

The square root of 2128158 is about 1458.8207566387. The cubic root of 2128158 is about 128.6277351259.

The spelling of 2128158 in words is "two million, one hundred twenty-eight thousand, one hundred fifty-eight".