2194659 has 6 divisors (see below), whose sum is σ = 3170076. Its totient is φ = 1463100.

The previous prime is 2194639. The next prime is 2194663. The reversal of 2194659 is 9564912.

It is not a de Polignac number, because 2194659 - 2⁷ = 2194531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2194639) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 121917 + ... + 121934.

It is an arithmetic number, because the mean of its divisors is an integer number (528346).

2^2194659 is an apocalyptic number.

2194659 is a deficient number, since it is larger than the sum of its proper divisors (975417).

2194659 is a wasteful number, since it uses less digits than its factorization.

2194659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243857 (or 243854 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 2194659 is about 1481.4381526071. The cubic root of 2194659 is about 129.9538100203.

The spelling of 2194659 in words is "two million, one hundred ninety-four thousand, six hundred fifty-nine".