2194497 has 12 divisors (see below), whose sum is σ = 3200340. Its totient is φ = 1448928.

The previous prime is 2194487. The next prime is 2194501. The reversal of 2194497 is 7944912.

It can be written as a sum of positive squares in 2 ways, for example, as 1640961 + 553536 = 1281^2 + 744^2 .

It is not a de Polignac number, because 2194497 - 2⁷ = 2194369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2194417) 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, 138 + ... + 2099.

It is an arithmetic number, because the mean of its divisors is an integer number (266695).

2^2194497 is an apocalyptic number.

It is an amenable number.

2194497 is a deficient number, since it is larger than the sum of its proper divisors (1005843).

2194497 is a wasteful number, since it uses less digits than its factorization.

2194497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352 (or 2349 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 2194497 is about 1481.3834749990. The cubic root of 2194497 is about 129.9506124035.

The spelling of 2194497 in words is "two million, one hundred ninety-four thousand, four hundred ninety-seven".