2194158 has 24 divisors (see below), whose sum is σ = 4636008. Its totient is φ = 692208.

The previous prime is 2194133. The next prime is 2194187. The reversal of 2194158 is 8514912.

It is a happy number.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1660 + ... + 2672.

It is an arithmetic number, because the mean of its divisors is an integer number (193167).

2^2194158 is an apocalyptic number.

2194158 is an abundant number, since it is smaller than the sum of its proper divisors (2441850).

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

2194158 is a wasteful number, since it uses less digits than its factorization.

2194158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056 (or 1037 counting only the distinct ones).

The product of its digits is 2880, while the sum is 30.

The square root of 2194158 is about 1481.2690505104. The cubic root of 2194158 is about 129.9439205851.

The spelling of 2194158 in words is "two million, one hundred ninety-four thousand, one hundred fifty-eight".