2159194 has 16 divisors (see below), whose sum is σ = 3431232. Its totient is φ = 1016928.

The previous prime is 2159191. The next prime is 2159197. The reversal of 2159194 is 4919512.

It is an interprime number because it is at equal distance from previous prime (2159191) and next prime (2159197).

It is not an unprimeable number, because it can be changed into a prime (2159191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3037 + ... + 3679.

It is an arithmetic number, because the mean of its divisors is an integer number (214452).

2^2159194 is an apocalyptic number.

2159194 is a deficient number, since it is larger than the sum of its proper divisors (1272038).

2159194 is a wasteful number, since it uses less digits than its factorization.

2159194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741.

The product of its digits is 3240, while the sum is 31.

The square root of 2159194 is about 1469.4196133168. The cubic root of 2159194 is about 129.2500009353.

It can be divided in two parts, 215 and 9194, that added together give a square (9409 = 97²).

The spelling of 2159194 in words is "two million, one hundred fifty-nine thousand, one hundred ninety-four".