2195098123 has 4 divisors (see below), whose sum is σ = 2324221560. Its totient is φ = 2065974688.

The previous prime is 2195098121. The next prime is 2195098133. The reversal of 2195098123 is 3218905912.

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

It is a cyclic number.

It is not a de Polignac number, because 2195098123 - 2¹ = 2195098121 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2195098121) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 64561693 + ... + 64561726.

It is an arithmetic number, because the mean of its divisors is an integer number (581055390).

Almost surely, 2^2195098123 is an apocalyptic number.

2195098123 is a deficient number, since it is larger than the sum of its proper divisors (129123437).

2195098123 is a wasteful number, since it uses less digits than its factorization.

2195098123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129123436.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 2195098123 is about 46851.8742741419. The cubic root of 2195098123 is about 1299.6247680348.

The spelling of 2195098123 in words is "two billion, one hundred ninety-five million, ninety-eight thousand, one hundred twenty-three".