2195198 has 4 divisors (see below), whose sum is σ = 3292800. Its totient is φ = 1097598.

The previous prime is 2195191. The next prime is 2195201. The reversal of 2195198 is 8915912.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195191) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548798 + ... + 548801.

It is an arithmetic number, because the mean of its divisors is an integer number (823200).

2^2195198 is an apocalyptic number.

2195198 is a deficient number, since it is larger than the sum of its proper divisors (1097602).

2195198 is a wasteful number, since it uses less digits than its factorization.

2195198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097601.

The product of its digits is 6480, while the sum is 35.

The square root of 2195198 is about 1481.6200592595. The cubic root of 2195198 is about 129.9644478719.

The spelling of 2195198 in words is "two million, one hundred ninety-five thousand, one hundred ninety-eight".